Non Sequitur Episode

""This is a fucking bizarre episode!""

- Yugi, Yu-Gi-Oh the Abridged Series

You're watching your favorite show one day. The episode seems to start as normal... but wait, what's this? Does everything seem completely against continuity? Are the characters acting as if dosed up on tranquilizers? Does everything happening not make sense within the pre-established context?

Welcome to a Non Sequitur Episode. Unlike A Day at the Bizarro, a Non Sequitur Episode does not truly come across as "surreal" or "strange". A Non Sequitur Episode is what you get when a Non Sequitur Scene spans the entire screen time. If the show DOES have a continuity, this episode will never be mentioned again, save perhaps as a Mythology Gag, and none of the likely wild events will ever be repeated.

A Non Sequitur Episode can also be applied to movies. If nothing in the movie seems to follow any previous event or plot and the whole thing seems to be one spontaneous series of events, you've probably got a Non Sequitur Episode on your hands.

When the finale of a series is this, it's a Gainax Ending.

Not to be confused with a Wham! Episode, which completely changes the direction of a series. See also And Now for Something Completely Different. If every episode is like this, a summary may mention that it's That Kind Of Show. Rarely, though, a Non Sequitur Episode may be redeemed if a skillful or cunning writer uses it to construct an Innocuously Important Episode.

NOTICE: Please do not use Musicals as examples, as the numbers are part of the show and are rarely anymore out of the ordinary than conversation within context. If it's a musical with absolutely no cohesive Plot, then you have a Non Sequitur Episode. However, a particular song may qualify as a Non Sequitur Scene; in that case, put it under Non Sequitur Scene.

Very Important Corollary: If you have ever tried to convince other people to watch a show you like, and they say, "Okay I'll watch one episode with you if you promise to stop bothering me about it," we Tropers can guarantee that the one episode you watch together will be that series' Non Sequitur Episode.

Advertising

 * This has really become a fairly popular Trope to use in ads—possibly playing off the Internet's fascination with Japanese-crazy ads. See here (and if you see this one without seeing that one, it makes even less sense), this one, and this one, though only if you don't watch the last five seconds
 * This Wine Gums ad.
 * The Kia Soul commercial.
 * Cadbury are pretty good at this.
 * The Hostess ads in Marvel & DC Comics of the 70's and 80's.

Anime and Manga
"Edward: And so, they all passed away, every one. It was a short series, but thanks for your support. That was the last episode. May they all rest in peace. Amen. [pause] And for the next series, we bring you Cowgirl Ed, Ed is the main character! [giggles] Spike: Hey! Wait a minute! Faye: What kinda selfish thing is that?! Jet: Next episode, Jupiter Jazz, Part One. Spike: There really is a next episode!"
 * Episode 13 of Digimon Adventure 02, "The Call of Dagomon" (a.k.a. the "Dark Ocean" episode). A tribute to H.P. Lovecraft written by Chiaki Konaka that was occasionally referenced, but never fully explained.
 * The "Cowbell" and "Nanami's Egg" episodes of Revolutionary Girl Utena feel like this compared to the rest of the series, and trust us, that's saying something.
 * The rule for Utena seems to be "Non Sequitur! Every eighth episode (except episode 32)".
 * However, because this is Revolutionary Girl Utena, even these episodes contain themes and ideas that help to explain the rest of the series. Not that you're likely to notice the first time in the middle of the giant WTF it induces.
 * Bleach's 10th year anniversary episode (ep. 287 to be exact), where Ichigo, Chad, Orihime, Rukia, and Renji are in a parody of Arabian Nights/ContinuityCavalcade of the Soul society arc. However, it was All Just a Dream. Indeed, but Isane was the one who had the dream, not Ichigo.
 * A Halloween episode had a similar premise, but had the characters in a Monster Mash setting. This time the one having the dream was Komamura (who dreamt of himself as Ichigo for some reason)
 * Many Filler episodes of Bleach can feel like this, but special mention goes to episode 228. Beach party featuring all the most fan-servicey characters? Check. Boob Buckets? Check. Giant edible watermelon tentacle monsters? Double check.
 * And that one wasn't even filler. It was actually in the manga.
 * Almost every episode of Gintama can count as a Non Sequitur Episode.
 * The episode "Warehouse 13" from the 2003 Fullmetal Alchemist anime. The men on Mustang's staff (note, men - Hawkeye was not involved; nor were Ed or Al) believe they have seen the haunted military warehouse 13 and are terrified to walk by the warehouses at night. Mustang is the only one who really stays in character, denouncing the warehouse as foolishness and going out at night with his men to prove to them that it doesn't exist. What really makes this a Non Sequitur Episode is the fact that four trained military professionals are suddenly freaking out about an urban legend.
 * That episode consisted of two shorts. The other one was Havoc trying to marry Armstrong's sister.
 * Tengen Toppa Gurren Lagann has its Non Sequitur Episode with episode four: The heroes don't seem to have anything better to do than trying to get some food, Kamina almost kills Simon "to make him more manly", there is a lot of lecturing on how to combine as brotherly as possible and the animation suddenly drops in quality. The only thing relevant to the plot is Kittan and his sisters being introduced, wearing psychedelic costumes while riding cows backwards. The consumption of Boota's tail is instrumental in defeating this episode's enemy mecha, which is piloted by a bunch of pink puffballs.
 * Supposedly episode 4 was made as a jab at other anime that decrease in overall quality after the first few episodes, but it was still effed up.
 * Pokémon has too many of these to count, but the first was the episode "The Ghost of Maiden's Peak". In this episode Ash and the crew get off a boat on a beach, Brock spots a mysterious girl and falls head-over-heels, but Ash and Misty miss her completely. Team Rocket gets off the same boat, and James suffers the same situation. They run into a strange old woman, who informs them of this condition, and the next day, both of them are kidnapped by the ghost. When they are found, they have become completely obsessed with the girl, and the old woman from the earlier scene explains that the girl is a spirit who wishes to steal their souls. The spirit turns out to be a Pokémon named Gastly, who defeats Ash's and Team Rocket's Pokémon by turning into their weaknesses (AKA: a mousetrap for Pikachu, a ball of yarn for Meowth, a water bottle for Charmander, and he combines an illusionary Venusaur and Blastoise to make a "Venutoise"). However, the sun rises and Gastly vanishes. Ash and co. and Team Rocket party for the night, and the episode is never mentioned again.
 * The one involving Time Travel! Brock, May, and Max lose Ash in the woods. Ash meets a cloaked woman in the middle of the woods who is singing a little song about Baltoy and treasure. She has an old book, but Ash doesn't pay it or her much attention at the time. Later, he meets a much younger girl who's searching for a treasure with (you guessed it) her Baltoy. She tells Ash she's searching for a treasure hidden somewhere in the woods, and opens a little book that talks about the treasure. It has a little song in it, which she starts singing. Ash interrupts and starts singing the rest, recognizing the song is the same one the woman was singing. The girl is surprised since the book only just came out. Ash explains about the woman and they eventually find her battling Team Rocket. They win and she takes them to a cave, where they fall down a hole in the floor, leading to a tunnel. As they reach the end of the tunnel, the woman takes off her cloak's hood, revealing herself to be an older version of the girl. She then explains that the giant stone tablet thing at the end of the cave is a time machine activated by a Baltoy. Then she goes back to the future. Then the girl leaves and Ash meets back up with his friends. AND ASH NEVER SAYS ANYTHING ABOUT THE TIME MACHINE!!!
 * May and Meowth had a Time Travel episode too. Only instead of a Stable Time Loop, they end up changing the course of history so that a guy doesn't die anymore and a town expands into a city. And instead of a time machine they get zapped by a magic locket. Because of love, or something. Anyway, neither May nor Meowth sees fit to tell anyone about the whole futzing about with time.
 * An episode involving a sadistic Togepi, a rocket, and Rayquaza. It's probably one of the funniest and second most surreal episode in recent history and needs to be seen to be believed.
 * By the way, the episode marks the first time Pikachu is referred to as male in the English dub. This doesn't stop him from getting shipped with Piplup, especially considering what happened seven episodes later...
 * One episode has it all: Ash and James dressed up as eggplants, an old man attempting to sell souvenirs at every chance he can, Nurse May, Dancing Queen Jessie, a crossdressing Meowth and Wobbuffet, Wobbuffet's flute playing skills, and to top it all off... A GIANT CLAYDOL. Even funnier is that the Claydol actually falls in love with and chases Wobbuffet!
 * Yu-Gi-Oh! managed to get a Non Sequitur Season. Between the quarter-finals and the semi-finals of the Battle City tournament, they arrive on a submersible military base and have to fight the digitised minds of all previous high ranking officials of KaibaCorp in a mindscrewed reality, at the behest of Seto Kaiba's Anime-exclusive Virtual Ghost half-brother, Noah. The season also introduced the Deck Master to the games, a process that makes no sense whatsoever (but what else is new). And to secure it as a total Non Sequitur, the digital mind of Kaiba's father tries to turn into a giant being of fire and eat their jet as its leaving. Lampshaded when Kaiba says he never wants any of them to mention it again.
 * Then there's the "Abandoned Dorm" sub-arc in GX. While "investigated" several times in Seasons 1 and 4, answers about what it actually was were few and far between, and usually resulted in bizarre Shadow Duels that get hardly a mention afterward. To this day, fans still argue over what exactly it all means.
 * And finally, there's the "Crashtown" arc of 5D's. Let's just put it this way: in the middle of a season-long arc of finding the Three Emperors of Ylliaster, let's intercut a Noah-like arc in the Wild West involving a former villain from Season 2, and put Yusei in a poncho. Needless to say, until the real season started getting hit with Wham after Wham, this was the point in which fans were starting to argue whether the cast had used their Duel Runners to Jump the Shark.
 * Almost all of episode 7 of Soukou no Strain, "Lavinia's Lovely Plot", is markedly different (and far more Fanservicey) from the dark tone of the series. Very little of what happens here is mentioned again, made especially jarring by the fact that Strain is only a thirteen-episode anime.
 * The zombie episode of Samurai Champloo, which has overtly supernatural elements that would be out of place in the rest of the series, and ends with the main characters either dead or undead. A very brief and light Lampshade Hanging later, and next episode, it's like none of this ever happened.
 * In Cowboy Bebop, an earlier work by the same director, one episode has some sort of alien Blob Monster attack all the crew and apparently kills them. Then again, it might not really count as a Non Sequitur Episode since in the next episode the first shot you see is the Main Character waking up from a nightmare, though it's still ambiguous as to exactly what the hell happened.
 * Lampshaded by Ed in the "Next Episode" preview on the English dub, which leads to a humorous exchange.
 * Lampshaded by Ed in the "Next Episode" preview on the English dub, which leads to a humorous exchange.

"The announcer: Which team will please the palate of Hei-san, the Voracious Masked King? Hei: How the hell did this happen? Mao: Beats me, Hei. This is The Gate, after all."
 * The final episode of Excel Saga. Lampshaded at the very end when the creator of the Manga shows up, ready to kill the director because of it.
 * You know what? Excel Saga. PERIOD.
 * Excel Saga, the Anime where the fourth wall is nonexistent, nothing is too crazy, and every episode is a wild parody of something different, pulls the ultimate Non Sequitur Episode by doing exactly what no one would expect: making one episode that's It still has some humor, but it's downright sober and understated by the standard of the usual comedy, which, considering the humor level never usually falls below "utterly wacky" in most episodes, it's very serious in comparison. It does defy the trope by being very connected to the rest of the plot regardless though.
 * Episode 101 of Naruto. Apparently they were trying to figure out what Kakashi looked like without his mask... Oh dear GOD, that will never make sense.
 * The "prison escape" arc during the Part 1 Filler also qualifies. Two of the main villains are giant men shaped like giant Russian dolls (tiny at the top and wide at the bottom) and equally bottomless; their battle cry is "Food! Food! Food!", and Naruto plays hide-and-seek with them (?). Meanwhile, it turns out that the Big Bad of the day is none other than, who is now fully Ax Crazy and has an old grudge against Iruka. For some reason he has grown giant muscles over the previous year, so the previous Bishonen now looks like one of those scary bodybuilders with a serious case of Testosterone Poisoning. And . Pass the mind bleach, please.
 * Many of the one-episode fillers qualify. The first of these was the Hot Springs Episode 97, which is so different from Naruto in animation, story and style, it makes you wonder if you're watching the right show.
 * Anime Filler, in general, tends be this, with Dragon Ball Z being hit particularly hard. Many Filler episodes are radically different in tone from the rest of the series, with continuity errors that make you wonder if the writer had even seen the show before. You could practically base a Drinking Game off of the Filler episodes where one of the characters forgets that he can fly.
 * The episode of DBZ in which Goku and Piccolo learn how to drive, in particular.
 * Sonic the Hedgehog The Movie, sort of. While actually considered pretty good by a surprising number of fans, it has zero relation whatsoever to any other expanded media, or even the games (besides the characters) and might have meant to have been part of a series. We'll never really know.
 * Heck, Bobobo-Bo Bo-bobo is a Non Sequitur Series, with special mention going to the episode in which Dengaku Man is launched up Bo-Bobo's rear end to form a Magical Girl, who then subdues her enemy by singing. It was so nice they did it twice, though with a picture book instead of singing.
 * Not only that, there are meta-Non-Sequiturs, when there are scenes that can be considered Non Sequiturs even within the context of the Non Sequitur Episode. For instance, during a pointless scene where Bo-bobo is riding a kiddy train ride at an amusement park, a giant baby bursts out of a tunnel, smacks some monkeys, and crawls away without ever being mentioned again.
 * Sailor Moon had an episode during Sailor Moon R that featured the main characters having an island vacation in which Chibiusa befriends a dinosaur and the main characters use their superpowers to save said dinosaurs from a volcano. Yea, that's right. The main characters fight a volcano to save a pair of dinosaurs. The show normally didn't venture into such fantastical territory being acceptable, and the existence of living dinosaurs never comes up in the show again. It's generally considered one of the most pointless episodes of the entire show since absolutely nothing happens to progress the plot or flesh out the main characters, and that's saying something for a show known for its gratuitous filler. It was never dubbed into English and left off the English subbed DVD releases entirely, as it was never dubbed and ADV claimed Toei didn't give them the episode due to the creator not liking it. Most people only complained that it made their DVD collections incomplete, as opposed to genuinely missing the episode.
 * The final episode of Ookamikakushi was probably meant as a Slice of Life Distant Finale... featuring, among other things, Nemuru and Mana fangirling over a weird frog/rabbit character and Hiroshi crossdressing and getting hit on by gangsters.
 * The Filler episodes in Fairy Tail. The first is a series of short bonus stories from the Manga (which are all Non Sequitur Scenes in their own rights) with the added story of a town of mages that accidentally cursed themselves to turn into monsters that the Main Characters all try to eat. The second is a Freaky Friday Flip that ends unresolved, which is actually made weirder by being mentioned in a later episode.
 * May we present to you the Zatch Bell Manga, chapter 277. Context will only make it worse.
 * Sayonara, Zetsubou-sensei is a Gag Series, but a few instances stand out. The first episode of the second series has its own Gag Sub with the characters speaking gibberish. There's the time that Harumi listens to an episode of SayonaraZetsubouSensei on the radio which can be heard indistinctly in the background, and most of all, the instance where Chiri becomes a giantess and fights off an alien invasion.
 * Darker than Black Manga (Jet Black Flower) has... Gate Kitchen Battle.


 * Panty and Stocking With Garterbelt: CHUCK TO THE FUTURE.
 * Neon Genesis Evangelion did this very noticeably in "Both of You, Dance Like You Want to Win!" which is an entire Hard Work Montage episode featuring Shinji and Asuka's attempt to work together as a team to defeat an Angel, with hilarious but, ultimately, successful results. The whole ep parodies itself very heavily and breaks so sharply with the overall feel of the rest of the series that it deserves special mention, mostly because most of the show exists in soul draining depression state, and this one episode practically turns the show into a light hearted comedy!
 * "The Hot Spring Planet, Tenrei", an episode of Outlaw Star. The rest of the series is a lighthearted Space Opera action show, but this episode briefly turns it into a Fan Service-laden slapstick comedy.
 * Episode 22 of the Black Butler Anime adaptation was pretty random, though since it was near the final episode it did have something to do with the Plot. In fact, since the Anime Overtook the Manga, it had a lot of stuff which didn't make sense. Anyway, in this episode, Ciel and Sebastian go to Paris for the World's Fair. Ciel reads about how there's a stuffed Angel somewhere there, so they go look at it only to find it's just a taxidermy monkey with wings attached. Suddenly, the monkey COMES TO LIFE! And it ATTACKS SEBASTIAN! And DESTROYS THE LIGHTING! So Ciel runs off to escape the evil winged monkey of doom, and goes to an elevator that leads to the Eiffel Tower. And who should he meet but...THE QUEEN OF ENGLAND! And her butler, Ash! When they go up to the top of the Eiffel Tower, the Queen lifts her veil to reveal  So, Ash is about to attack Ciel or something, but just then, Sebby turns up (obviously finished his epic battle with the evil winged monkey of doom) and fights him off with cutlery. The Queen and Ash escape and our two "heroes" return to their hotel. And the next morning, his faithful butler hath vanished! So, Ciel attempts to find his own way back to London, which he isn't very successful with. And he strokes a cat at one point. Isn't he allergic to them? Anyway, he finally stows away on a ship, where he meets the Undertaker, who feeds him bone-shaped biscuits. They return to London to find...  The next episode makes it all sillier when you discover
 * Episode 19 of Ergo Proxy has Pino, in a dream, visiting a theme park called Smile Land, owned and run by a man called Will B. Goode. The episode consists of Pino exploring the park along with a couple of its (presumably also AutoReiv) characters, and ultimately being convinced by Mr. Goode to avoid visiting the park when she, Re-l, and Vincent pass by it for real, . When Pino wakes up, she succeeds in steering Re-l and Vincent away from the park, which was never seen or heard from again.
 * Episode 15 doesn't quite qualify; Vincent winds up as the contestant on a "Nightmare Quiz Show", presumably through the devices of a Proxy, and the entire episode depicts an episode of said quiz show. While this is a vastly different style and tone from the rest of the series (with the possible exception of the aforementioned episode 19), the episode delivers a lot of important, if cryptic, exposition about the backstory and the creation of the Proxies; moreover, the episode is repeatedly referred to, or even flashed-back to, in several later episodes.
 * The entire Fusion Reborn movie was this. It starts with one of King Enma's workers getting mutated into a giant reality warping baby, that talks like a Pokémon, traps Enma's palace in a barrier, which causes the dead to return to Earth, transforms the clouds into marbles and the blood pond into a giant jelly bean. Goku attempts to fight him while Paikuhan tries to free Enma, by INSULTING the barrier. Then Vegeta shows up, and he and Goku defeat this powerful demon that fights with Atari-esque special effects. All the while, Goten and Trunks have a cartoonish slapstick fight with Adolf Hitler and his army of tanks. Oh, and let's not forget Goku and Vegeta fusing. Ho Yay doesn't even describe it. Yeah, the writers were smoking something while making it.
 * The second episode of Ghost in the Shell: Stand Alone Complex 2nd Gig focuses on a one-off character, a pilot named Gino, who plans on assassinating one of his most recent clients. The whole episode is something of a Mind Screw, since it tends to flash in and out of Gino's fantasies about doing so. The only recurring characters who appear are Major and Batou, who only appear in rather minor roles that are, to add to the weirdness, totally different from who they are. At the end, it's revealed to be something of a sting to determine whether or not Gino would actually go through with the assassination. They just say he would never do it, the episode ends, and the whole thing is never mentioned again. The entire thing is a Whole-Plot Reference to Taxi Driver.
 * Inazuma Eleven episode 100. Hiroto and Kogure get lost in the woods, and are challenged to a match by a pair of Kappas, no character development happens, no new techniques are learned, and it's only mentioned in a blink and you miss it scene during a flashback.
 * An unaired episode of Angel Beats! has most of the cast transform into crazed hyper-hams who seem impossibly over-the-top even compared to their normal hammy personalities. They continue to top each other and become more and more obnoxious and hyperactive throughout the episode, and eventually (though somewhat spontaneously) wear themselves out. And...that's pretty much it. The episode was never broadcast, so, of course, none of the insanity that happens in it is ever brought up in any other episode, even though it clearly takes place sometime in the middle of the main plot.
 * Though it was all part of an operation that Yurippe came up with, so it's not like there was no reason for it. Though the episode did run completely on Rule of Funny.
 * The episode of Ouran High School Host Club wherein young!Haruhi suddenly steps into a pastiche of Alice in Wonderland with characters from the show in all the major roles. Of course, this is really All Just a Dream, but surprisingly, the entire episode is not only entirely in continuity but it actually is important for developing several of the characters. Especially
 * ''spun off into its own franchise). Definitely the first time this trope had ever been used in anime, and possibly a first for Japanese television as a whole!

Comic Books

 * Countdown to Final Crisis is effectively a Non Sequitur Series for the entire DCU. With Out of Character moments, random deaths, nonsensical and time-wasting plotlines, it firmly cemented itself as a Non Sequitur Episode when Grant Morrison, the author of Final Crisis (the event Countdown was supposed to lead up to) ignored it completely and effectively put the entire thing into Canon Discontinuity.
 * Just ask Linkara.
 * The Sonic the Hedgehog/ImageComics Crossover special. Chronologically meant to take place between the Return of the King special and issue #57 in the Sonic timeline, it has Particle steal the Master Emerald and bringing it to Dr. Ian Droid, so Sonic, Knuckles, and the Freedom Fighters travel to the Image Comics Earth to reclaim it, and end up joining forces with the Image Heroes. In the end, Knuckles ends up wishing for everything to be restored to the way it was before, and afterwards, all but Particle and Shadowhawk forget the whole thing ever happened.
 * Dr. Droid was supposed to make a return appearance in a later miniseries, as the threat Knuckles was prophesied to defeat. Thanks to Executive Meddling, though, that Plot was dropped and the miniseries got turned into the infamous "Mobius: 25 Years Later" arc.
 * Like the above example, almost every intercompany Crossover is a Non Sequitur Episode. They remain popular because of the potential for a Ultimate Showdown of Ultimate Destiny, and if nothing else there's always the hope that fans of one character will read the Crossover and decide they like the other character as well and start reading that - basically, companies trying to cross-pollinate their Fandom. However, for legal reasons these crossovers very rarely have any impact on ongoing continuity (although it happens occasionally), and works set in different universes tend to have different assumptions and physical laws, in particular about Power Levels. Most intercompany Superhero crossovers have involved characters casually running into each other even though if they existed in the same universe they really should have had plenty of encounters before now or something, and afterwards are never mentioned again in-story unless there's another Crossover.
 * A better example is Uncanny X-Men #153, the classic "Kitty's Fairy Tale", in which Kitty regaled young Illyana Rasputin with a made-up Fairy Tale casting herself and Colossus as heroic pirates, and other members of the X-Men as their allies to rescue the Phoenix Genie. Some see this issue as a coda to the Claremont/Byrne era, as it shows Kitty fully assimilating with the team to the point where she can gently rib her teammates for their peccadilloes (as the story progresses the rest of the X-Men listen in and enjoy a good laugh), and even give the Scott and Jean in her story the happy ending which they were denied.
 * Issue 34 of the first incarnation of Marvel Comics' What If? consisted of nothing but humorous takes on the Marvel Universe and its characters (a good number of them one-panel stories, even), culminating with "What Will Happen When Stan Lee Reads This Issue?"

Eastern Animation

 * Space Thunder Kids is a bunch of cheap South Korean animation cobbled together with the biggest effort towards cohesion being the summary on the back of the box. It's impossible to tell who are supposed to be the eponymous Space Thunder Kids as the film constantly shifts between different looking who may or may not are supposed to be the same people who never really do anything important, interspersed with blatant plagiarism that never goes anywhere either, all padded as long as possible(like a spaceship exploding for twenty seconds) leaving the film an incoherent mess where things, even the ending, happen for no adequately explained reason if any reason is given at all.

Fan Works

 * My Immortal sort of has a plot, but it's a Random Events Plot at best and seems to run on Chandler's Law.
 * Fanfic example: Chapter 122 of Guardians of Pokémon. The cast has just gotten back from a Trapped In Video Game Land arc, only Ash hasn't lost his Heroic Mime status, and then it turns out that Butch and Cassidy stole it just before they all left the video game world and now Butch is calling himself "Smash Ketchum" and using Ash's voice to hypnotize everyone over the radio. Then a battle happens and every time someone gets hit, their voice pops out of their body, leading to everyone switching voices for the rest of the episode.

Film

 * Monty Python and the Holy Grail consists of a string of odd (and hilarious) happenings, most of which are never mentioned again.
 * And Now for Something Completely Different is just that.
 * The Rocky Horror Picture Show. The opening sequence involves a pair of singing disembodied lips...and it just gets weirder from there.
 * The "horror" movie Skinned Deep (horror used very loosely) is a pure example of this. Some notable examples include a kid getting cut in half, a headless muscleman with boxer briefs that read "DYNO-MITE!!!" on them (which hides real dynamite), streaking after a motorcycle ride, and: "I brought you some soup and money". The movie is broken up into 5 or 6 distinct parts (none of which have actual transitions), each of which having little to no connection to the others.
 * Most of The 5000 Fingers of Dr. T is a dream sequence conjured by Bart Collins who believes his piano tutor Mr. Terwilliger to be his Arch Enemy who plans on using five-hundred boys to play a giant piano and marrying Bart's hypnotized mother.
 * The entire second half of Gremlins 2 is just a long series of gags which don't actually drive the storyline anywhere. In fact, most of the first half of that Film is entirely useless, as well.
 * On the commentary, Zach Galligan eventually notes that despite being the nominal Main Character of the Film, he's only onscreen for about a third of it thanks to all the gags.
 * Halloween III: Season of the Witch has nothing to do with Michael Myers and instead has a Plot that involves a mind-control conspiracy. What, you want continuity? Forget it. Not only does the Film make no sense on its own, it is a stand-alone Film with no connection to any of the other Halloween movies at all.
 * Originally the idea behind the Halloween movies was they'd have nothing in common except taking place on Halloween. The problem was the first one did too well and Michael Myers became too much of an icon to make the other movies without him. Halloween III was an attempt to revive their original plans and was so bad it killed all possibility of making any other movies not centering around Mr. Myers.
 * We're Back! A Dinosaur's Story... where to begin?
 * First up, the entire movie is a Flash Back being told to a random bird. Why? It's never mentioned except at the beginning and at the end.
 * The time traveler says he wants to save the world by giving dinosaurs to all of Earth's children. Ignoring for the moment exactly how taking animals out of their native environment (never mind geological era) and bringing them to New York City is supposed to save the world, he drops them in the ocean, whereupon, after some time, they coincidentally discover a small boy. Okay then.
 * Furthermore, if this guy is a time traveler, why does he show up at the end, rather than earlier to prevent the dark climax from ever occurring at all?
 * The Aesop of the Film is supposedly that "family is good"; however, none of the action corresponds with this, and the two main characters' lack of parents is somehow resolved at the end without explanation.
 * The tedious scene in which we watch a hat fall onto a young girl's head would appear to drive the Plot somewhere... but it's never mentioned again.
 * Likewise, the children's romance doesn't go anywhere either.
 * The inexplicable musical number.
 * The Big Bad's unneeded and horrifying death scene... right after seemingly learning his lesson about scaring people. This scene would have actually made sense if a previous one had made it into the final product. It's kinda scary though.
 * Said horrifying villain death is all the worse because it is immediately preceded by a scene where the dinosaurs go from angry and wild to cuddly and cartoony through the Power of Hugs. Basically, this movie has balls to do this with the picture book it is supposedly based upon.
 * That The Movie of Tank Girl would end up as one of these was guaranteed the minute they decided to cast Ice-T as an anthropomorphic kangaroo.
 * ...Because a part like that should go to Snoop Dogg.
 * The Film Xanadu, despite being a musical, is incoherent and ridiculously nonsensical. Regardless of whatever tenuous links to some form of Plot the Film possesses, the fact remains that most viewers fail to understand this given the sheer oddness of the story, pacing and premise.
 * In her review of the Film, The Nostalgia Chick had to name this Trope because no scene made sense in context of the others.
 * The Hangover could be considered a Non Sequitur Episode. By the end of the movie, you have sort of a vague idea as to what could have happened last night. But you're still left wondering as to how one situation led to another.
 * The Room is one big old pile of Non Sequiturs. So many characters come in and out and give new information without any real sense of cohesion.
 * The Adventure of Sherlock Holmes Smarter Brother. Gene Wilder's directorial debut. Since he did not share the writing duties with Mel Brooks this time, it seems that while Wilder has many funny ideas, he doesn't quite have the skill for bringing it all together.
 * Jesus Christ Vampire Hunter Ok, so there's a vampire fight scene followed by a pointless musical number, followed by a transformation... then it stops making sense.
 * The spy parody Casino Royale 1967 . Many things in the Film are never mentioned again once they happen. It is all completely over the top even for psychedelic sixties spy flicks. Many scenes could be removed from the Film with little or no damage to the Plot. There are even some scenes that when seen together have absolutely nothing to do with each other. But somehow it fits together as a whole.
 * You can blame this completely on the film's fascinating Troubled Production. Those five directors listed in the credits? None had any contact with each other, and none were working with a complete script. Plus, Peter Sellers was originally supposed to be the star, but either quit or was fired depending on who you believe, prior to filming several important scenes, so the film was awkwardly retooled to center around David Niven instead.
 * Hausu is so unbelievably surreal that it's difficult to even describe. So many moments come out of nowhere that it makes the concept of a Non Sequitur irrelevant.
 * Crank: High Voltage is one gigantic series of Non Sequitur Scenes, starting right from the very opening sequence.
 * Done on purpose by Neveldine and Taylor, who wanted to start work on Gamer so urgently but they couldn't due to studio pressure for another sequel. So they threw in lots of Non Sequitur Scenes, hoping the sheer awfulness of the script would get the film dropped so they could work on Gamer.
 * In the context of Star Wars Canon, the Star Wars Holiday Special is essentially a string of Non Sequitur Scenes. It involves a Wookiee family watching a cooking show, some sort of strange Wookiee porn, a sci-fi action scene in cartoon form, a Wookiee watching an instructional video on how to assemble a transmitter (every step of which is shown to the audience), and Bea Arthur as a singing bartender on Tatooine.
 * The fourth Silent Night, Deadly Night involved things like a Straw Feminist Religion of Evil and Big Creepy-Crawlies, among other bits of Mind Screw. The previous films were about serial killers prone to dessing up like Santa Claus.
 *  Texas Chainsaw Massacre: The Next Generation, where Leatherface is now an effeminate Creepy Crossdresser whose new family (which includes a guy with a bionic leg) are employed by a government group or cult that is possibly controlled by aliens.
 * Slumber Party Massacre II, which is a musical full of Mind Screw where the psycho is a ghostly rockabilly who kills with a drill attached to an electric guitar. The previous film was comedic, but not random as fuck like this one, while the proceeding one was completely serious, and the villains of both of those were just crazy, non-supernatural guys.
 * Salvador Dali once made a surrealist film. The first shot is a pierced eyeball.
 * The entirety of Michael Jackson's Moonwalker. The premise sounds straightforward enough - MJ uses The Power of Pop to save a little girl from drug dealers - but it... really... just... isn't. Even his biggest fans were left scratching their heads, wondering if he'd written the script by dictating the results of an acid trip. Seriously, if we tried to describe it here, you would not believe us. Just go to YouTube and search for some clips, and bear in mind, every single one of them Makes Just as Much Sense in Context.

Literature

 * Shusaku Endo's short story anthology Stained Glass Elegies consists of deadly serious examinations of Catholic faith in everyday life...and an over-the-top, sidesplitting parody of Fantastic Voyage Plot. It was apparently the only comedy story Endo ever wrote, which makes the transition from thoughtful treatises to enema jokes all the more jarring.
 * The Goosebumps book I Live In Your Basement!, due to copious amounts of mindfuckery and Gorn.
 * The Sweet Valley Twins: The Magic Christmas, a book best described as "Elizabeth and Jessica go to Narnia." Even in a series that occasionally acknowledged the existence of the supernatural, this one was weird.
 * Dexter in the Dark, the third Dexter novel, shifted the series from crime thriller to supernatural horror, revealing the reason Dexter kills is because the spawn of an Eldritch Abomination (which comes complete with its own cult) has taken him as its host. The later novels make only minor references to these events, if that.
 * Animorphs had a few examples, but a special shout-out goes to the 39th book, The Hidden. The Helmacrons return, forcing the Animorphs to go on the run with the blue box. Along the way a buffalo and an ant acquire morphing powers, in violation of all previous continuity about how the blue box works. Thankfully, none of these events are ever mentioned again.

Live Action TV
"Interviewer: According to my notes, he swallowed two ounces of sulfuric acid, mixed into a White Russian. Blackstone: That's the worst thing you can do to someone with a drinking problem."
 * From the 2004 Battlestar Galactica: The episode "Black Market". Oh, where to begin? We find that Apollo has been seeing a single-mom hooker and her child regularly on the black market ship Prometheus. This was never mentioned before or ever again. He is seeing and helping out her and her kid due to guilt over leaving his former pregnant girlfriend shortly before the Cylons attacked. This was never mentioned before or ever again. He winds up killing the black market's ringleader in a totally out-of-character manner. Then he declares that the black market can continue because it's necessary or something. And we never hear anything more about it. It's saved from being a complete Non Sequitur Episode by dint of two factors: 1) in this episode starts a chain reaction of events that eventually puts Lee in command of Pegasus, and 2) the head of the black market is played by Bill Duke. Ron Moore later discussed "Black Market" very frankly both on his blog and in the episode's commentary, admitting that it was completely nonsensical and explaining the logic that went into making it that everyone thought made sense at the time, only to realize with growing horror that it just didn't work.
 * "Black Market" has a third point of relevance: it's the episode where . Obviously though, the scene where this happens has nothing to do with the plot of the episode.
 * "The Woman King" came along one season later and stole "Black Market"'s crown. This episode involves a well-beloved but insanely racist doctor who sets about killing citizens of the "poorer" Colonies under the guise of a free clinic he's operating right on Galactica. Helo's tasked by a woman (named King) to put a stop to the Mad Doctor and avenge her son (who the doc allegedly killed). Helo spends much of the episode on a Cassandra Truth wild goose chase because no one believes him, what with the better half of the cast coming down with a sudden case of 24-hour Fantastic Racism Disease. Everyone acts Out of Character, the episode just goes in circles, and everyone forgets it even happened by the next episode.
 * It doesn't help that the episode is one of the few remnants of a subplot about the Saggitarons on New Caprica that was soon abandoned (the only other really noticeable one is Baltar's mysterious whisper that causes Gaeta to try to kill him, which was eventually repurposed towards another subplot in a webisode series), and scenes in earlier episodes that would have helped explain everyone's refusal to believe Helo were all cut.
 * Babylon 5 - "Grey 17 is Missing". What the frell were they smoking? Note that the Zarg is never mentioned again...
 * J. Michael Straczynski has offered to personally apologise to every fan who complains directly to him about the episode, citing it as the bastard offspring of an unholy trinity of Author Brianfart, Executive Meddling, and Ran Out Of Time and Money.
 * However, despite half the episode being ridiculous and brain haemorrhage-inducing, the B-Plot is incredibly important to the Myth Arc:.
 * Doctor Who. "The Feast of Steven", episode 7 of The Daleks' Master Plan. Our heroes have a chase through Twenties Hollywood, get arrested by police in the 1960s, and end up Breaking the Fourth Wall.
 * And then there's The Chase, arguably the silliest Dalek story ever, full of crack.
 * Oh, and 30th anniversary charity special "Dimensions in Time".
 * Also The Mind Robber, in which the TARDIS materialises outside reality and then explodes, and the characters find themselves randomly interacting with fictional characters.
 * The Honey I Shrunk the Kids episode "Honey, I'm Spooked". It involves the spirit of a pint-sized clown showing up and weird things happening to the Szalinskis, such as turning Nick into a ficus and Diane regressing into childhood.
 * The Two Pints of Lager and a Packet of Crisps episode "When Janet Killed Jonny" is one of these. It is an episode set outside of the main continuity, and is a "horror special", featuring many parodies of the horror genre (although it does contain many moments of Nightmare Fuel, in a deviation from the show's usual formula). The episode features the cast breaking into the deserted Archer pub to drink the leftover beer, only to fall victim to the previously unmentioned "pub curse", which causes them to be "killed by the thing they love the most". As a result, the entire cast is killed off in an assortment of highly gruesome ways, only to later return as zombies.
 * Some viewers consider the Angel episode "The Girl In Question" to be this - in the middle of a tense, tragic story arc leading up to the heavily depressing series finale, we get an episode revolving around Spike and Angel gallivanting off to Italy to have wacky, Ho Yay-tastic adventures while trying to rescue Buffy from the mistake of dating an unseen, vampiric sexual predator with whom they apparently have a never-before-mentioned complex history; this unapologetically farcical storyline is played against a bitter, tragic Los Angeles subplot in which Illyria assumes Fred's form in order to deceive her parents into believing that their daughter is alive and well, a state of affairs which nearly breaks Wesley and is difficult to watch even for the viewers. The episode feels fragmented and out of place at best, and at worst features an incredibly tactless and offensive juxtaposition of storylines.
 * It also doesn't help that the B-plot indicates that Wesley didn't carry out Fred's final wish that he inform her parents of her death. And that from what we hear, Buffy has turned into The Ditz, having an affair with the evil Immortal, making it come off as a rather petty Take That after Sarah Michelle Gellar refused to appear in the show's 100th episode. Whedon later made an Author's Saving Throw in the Buffy comics, revealing that it was actually one of several Slayers around the world who are impersonating Buffy to confuse the bad guys.
 * The Young Ones could be considered to consist of little else. There are indeed plotlines within episodes, but they don't connect to other episodes, and are often derailed partway through. Sometimes they are not even resolved.
 * The two-part Heroes episode "The Eclipse", in which an eclipse randomly and inexplicably removes all the characters' powers. We never found out how or why this happened, and none of the events of those episodes were ever mentioned again.
 * And this is just the most notorious example. Heroes has a lot of Non Sequitur Episode. If you watch the previous seasons, keep track of how many new characters and storylines are introduced vs. how many are still acknowledged in newer episodes.
 * Heroes had an entire Non Sequitur Season. Remember season two? The writer's strike? Micah's cousin who could learn anything she saw on TV? Maya got a bit of a sendoff, but her brother was unceremoniously dropkicked out of the show. Clare's flying boyfriend who hated her father? And best of all, the girlfriend Peter forgot in the future?
 * SeaQuest DSV "Knight of Shadows". It's a Halloween episode, and does at least try to give the OOC characters some excuses. But still, it was a low point for the otherwise shining season 1.
 * Once or twice a season Supernatural will include a comedy episode, with a ridiculous Plot which is just an excuse to use situations like 'Sam and Dean are suddenly trapped on the set of this weird TV show called Supernatural, and we are now going to spend 40 minutes making fun of our own premise, crew, actors, and viewing figures'. This does not necessarily make these episodes bad.
 * For those who are less familiar with the show, I think this deserves a little clarification: these episodes are insanely popular, and are widely considered to be the best episodes of the series in terms of sheer entertainment value, once again proving that tropes are most definitely not bad.
 * Significantly, The Prisoner did this twice, in the episodes "Living In Harmony" and "The Girl Who Was Death"—both of which massively change the entire format of the show just to fuck with The Protagonist, not to mention the audience.
 * There was also "Do Not Forsake Me, O My Darling," which Patrick McGoohan isn't even in, where the Powers That Be basically put Number 6's brain in some other guy and send him on an errand outside of The Village for them.
 * This was sort of a Real Life Writes the Plot episode; Patrick McGoohan was off making Ice Station Zebra when this episode was filmed.
 * Most people would have just mentioned the series finale and moved on.
 * The fifth season episode of Xena: Warrior Princess entitled "Married With Fishschticks" which mostly forgets about the story arc going on at the time to do a pointless filler episode where the feuding Aphrodite and Discord accidentally send Gabrielle into this alternate world where she's a mermaid, and is entirely populated with merpeople. The whole thing is weird even by this show's standards, and ends with it apparently being All Just a Dream as Gabrielle wakes up back with Xena.
 * The people behind the show were well aware that this one wasn't their finest moment, and even did some micromanaging of the schedule to make sure it didn't get the distinction of being the show's 100th episode.
 * The Star Trek: The Original Series episode "Plato's Stepchildren" is just so freakin' weird that were it not for the interracial kiss, most fans would probably consider it a Let Us Never Speak of This Again episode. Notable Plot Points involve alien Mind Rape, Spock in a toga singing, and Kirk being ridden by creepy little demented dwarves.
 * Certainly a number of first-season episodes of Star Trek: The Next Generation would count as this Trope.
 * On the episode "Hide And Q", the character Q grants the characters wishes, and teenage Wesley Crusher wishes to be 10 or so years older. Then suddenly, BAM! he's transformed into a strapping, tall and exceptionally hunky man. We then cut to Geordi LaForge leering at the new Wesley and saying, "Hey, Wes. Not bad." It has been noted by several sources that Lavar Burton's character was originally supposed to be gay, but this is the only time it appears to be shown on screen, in this season one episode. Thereafter, it is never ever ever ever mentioned again, and the LaForge character eventually falls in love with a holodeck character then eventually an actual woman, and they live happily ever after. Non Sequitur.
 * Similarly to "Plato's Stepchildren" mentioned above, this is Averted Trope in the case of "The Naked Now". Although it fully appears as though this is a Let Us Never Speak of This Again episode, albeit an absolutely hilarious one, what with Data getting drunk and Dr. Crusher grabbing Picard's crotch just offscreen, the fact that Data and Tasha Yar had intercourse is mentioned in later episodes, notably in "Measure of a Man" where it is used to help establish Data's sentience.
 * It even gets a Call Back much, much later in Star Trek: First Contact with Data telling the Borg Queen that he is "fully functional" in the sex department.
 * "Justice" arguably counts—for no clear reason, the crew of the Enterprise is schmoozing with what appears to be a pre-warp culture, when Wesley knocks over an outdoor decoration and is sentenced to death. And even though the Prime Directive didn't prevent them from making contact with this planet, all of a sudden it prevents Picard from saving Wesley.
 * "Conspiracy" is another TNG example of this. Starfleet command has apparently been infiltrated by parasitic slugs that inhabit the brain of the host creature. This is obviously an event of considerable political magnitude, but it is never again referenced. However, it was Foreshadowed several episodes earlier, making it a kind of Aborted Arc.
 * Executive Meddling is to blame for that. The story was originally intended to have a purely human conspiracy within Starfleet, but Gene Roddenberry himself vetoed that because of how it clashed with his vision of Star Trek as an Utopia where all humans work towards a common goal in harmony. So they added mind-controlling alien infiltrators to the Plot.
 * Actually, it was intended to be the hook for the major villains of the series. The thing was, it created too much paranoia that they wanted to avoid, so they changed the concept over to the Borg. Kept the insect theme, what with the drones and hive mind, and they kept the "they take you over" thing with assimilation, but made it quite obvious that these were the bad guys, while the people in uniform are the good guys.
 * TNG has a number of oddball episodes that qualify for this, most notably some of the truly god-awful episodes of the final season. After all, we got such lovely inexplicable plots as Beverly's inherited ghost lover and everyone on the Enterprise "devolving" into things that make absolutely no fucking sense.
 * The Star Trek: Voyager episode "Threshold". So Tom Paris breaks the "transwarp barrier", right? And this results in being in every location in the universe at once. Somehow this makes him evolve into a higher order of being... which then transforms into a Mudkip-like lizard thing who can't breathe air. He kidnaps The Captain and they run away in said transwarp barrier breaking ship. They are discovered within range and the crew find them on a beach together having just had a small litter of Mudkip babies. (Repeat: Paris had children with Captain Janeway. When they were both Mudkips.) Anyway, the babies are still out there presumably but everything else is Reset Button with antimatter injections. Got all that? Okay, because this is the one episode out of all the Star Trek episodes ever made that is in Canon Discontinuity.
 * Want proof? In a later Voyager episode, Tom Paris says that he has never travelled in transwarp. Never.
 * Star Trek: Deep Space Nine went off the rails a few times late in the series, producing such Non Sequitur Episodes as the holodeck baseball game and the Ocean's Eleven knockoff where the main cast ignored their duty in favor of pulling off a heist to save the holodeck lounge singer from a gangster. (No, it doesn't make sense in context.)
 * Star Trek: Enterprise has one of the rare examples of this trope churning out a great episode: over dinner, T'Pol regales Archer and Trip with the tale of an ancestor of hers who lived on Earth over a century before First Contact.
 * Star Trek has the Mirror Universe episodes, where most of the characters are downright evil or entirely different than what is expected. Just to add to this, there is no Federation; instead, the Terran Empire exists in its place -
 * Enterprise's "In a Mirror, Darkly" two-partner is an excellent example. While the other episodes crossover between the two universes, this one was set entirely in the Mirror Universe. . The Enterprise production team went balls-to-the-wall and combined this trope with a Breather Episode full of Fan Service and soft-core Continuity Porn, not to mention the entire cast in Large Ham mode and obviously having tremendous fun; it's one of the most entertaining episodes in the series.
 * Also, three episodes (one in TOS, one in TNG and another in ENT) involve a Negative Space Wedgie that causes the crew to do the Mushroom Samba.
 * Lost's infamous "Stranger in a Strange Land". A high ranking Other is introduced, along with their legal system. Neither is mentioned again. Jack's tattoos are apparently full of important insight into Jack's character. He had never mentioned them before. Nobody had. And then Jack flashbacks to his borderline incoherent experiences with a possibly psychic Thai tattoo artist who he sleeps with, then gets beat up for. This is never mentioned again. Meanwhile, Sawyer and Karl discuss The Brady Bunch and how Karl and Alex named stars together. None of this is mentioned again.
 * The final episode of Candle Cove. Puppets screaming and crying. For 30 minutes.
 * What episode were you watching? The real Non Sequitur is why everyone suddenly loved watching static, of all things...
 * Power Rangers in Space. Four words. Teenage Mutant Ninja Turtles.
 * On the subject, Super Sentai has this for its Samurai Sentai Shinkenger iteration in the form of its Direct to DVD movie. Released after the end of the series run, it talks of the team 'returning,' since they part at the end. The team is together for the whole movie, and then there's the content itself.
 * There's also the now-traditional DVD shorts that both Sentai and its block-mate Kamen Rider give out yearly in Telebi-kun Magazine. A lot of these are very nonsensical even compared to other filler episodes within the series.
 * Speaking of Kamen Rider, it is something of a tradition for a couple of episodes around episode 30 of each series to be a bit... different.
 * Kamen Rider OOO had two episodes celebrating the 999th and 1000th episodes of the franchise, featuring loads of old monsters, the cast trying to make their own Kamen Rider Movie, and Kougami watching Kamen Rider on about 50 different screens.
 * Kamen Rider W had Shoutaro and Phillip chasing a Dopant that sent people into comas through lucid dreams. To catch him, they fall asleep (while transformed, in the middle of a football pitch) and went into the dream world, where they were samurai. Or something. Even one of the villains point out how odd that is. And that's just the first part!
 * Kamen Rider Kabuto had the Dark Kitchen arc, featuring cooking duels and food that can manipulate emotions, and very little actual Kamen Rider action (just one or two obligatory action scenes disconnected from the plot)
 * Kamen Rider Blade had Hajime losing his memory and meeting a man identical to himself. They swap lives and have cooking duels, culminating in Hajime's lookalike making himself a suit of armour and beating the monster of the week.
 * Part of the charm of Lexx is that the normal Status Quo Is God is what would be a Non Sequitur Episode in most shows, but it still has a few Non Sequitur Episodes by its own standards. The most obvious is the fourth-season episode A Midsummer's Nightmare, where the crew is trapped in the fairie kingdom by Oberon, who seeks a new bride to replace Titania. Oberon is gay, Titania is a male midget crossdresser, Puck is Camp Gay, Kai ends up turning into a tree while dancing and singing, Stanley nearly marries Oberon and gets as far as putting on the wedding dress... Oberon even admits that he has zero understanding of the show's cosmology, lampshading how the batshit insanity everyone is going through just plain doesn't fit into it.
 * In the fourth-season episode "Prime Ridge", the crew (having been unable to find the Lexx's key for several episodes) decide that they have nothing to do, and so they buy a house in a small-town neighbourhood (which is being sold by Britt Ekland). 790 hacks an ATM. The crew live in it for several days. Stanley sleeps on the lawn for some unexplained reason, and then gets hit on by said real estate agent and her daughter. Xev gets a job as a stress counsellor (despite having no resume or references) and the whole episode culminates in a giant firefight between the FBI and a pair of stoned teenagers wielding machine guns. Xev, Stan and Kai get in a car and drive away, and never mention the incident again for the rest of the series.
 * "The Bicycle Tour" episode of Monty Python's Flying Circus. Not only does it have the same Plot throughout, whereas most episodes were a series of sketches, but it does not begin with the usual theme music and animation.
 * "iSpace Out" from iCarly has a Non Sequitur Subplot, with a random little girl wandering into the apartment when Spencer is there, and not doing anything until she walks out again, it takes up half the time of the episode and literally nothing happens or is resolved. "iMake Sam Girlier"'s entire plot was Sam wanting to get a boyfriend; she tries to act more girly, but in the end Be Yourself wins out. The guy vanishes and is never spoken of again, not even to explain why.
 * iCarly and Victorious each aired an April Fools'' episode back to back. Both were utterly nonsensical episodes. Nothing made sense, and it was completely random. There was No Fourth Wall. They were both pretty much aware of this trope all the way through
 * Even Police Stop isn't infallible to this. The episode Police Stop! 3 has subjects that are never mentioned again for the rest of the series and doesn't mention the United Kingdom very much. The same can be said for Police Stop! 4, its sequel that followed in 1995, which had no idents between episodes. This is surprisingly rare for a documentary to do such things. However, your opinion will differ on this. If you do wish to see the series, watch it on ITV4, it's nearly always shown as reruns.
 * Hercules: The Legendary Journeys gives us the 4th season episode "... And Fancy Free", in which Hercules enters a dance competition. Nothing rests on this competition other than his partner's self esteem, and a nice trophy. Apparently, in spite of this, the town magistrate finds this competition important enough that he spends most of the episode sending assassins after Hercules and his partner to stop them from winning. No other motivation is given, he just wants his daughter to win. Bonus Points for guest starring Michael Hurst in drag as the dance instructor
 * There is a later episode featuring the same characters in struggle over fashion...which is about as pointless as "...And Fancy Free". Also no explanation is given as to why the town magistrate has apparently given up his duties to go into the world of ancient Greek fashion.
 * Speaking of Hercules, the episode set in the present day which is all about Kevin Sorbo having gone missing, and features the memorable and hysterical restroom whistling scene.
 * The Hannah Montana Forever episode "Kiss It All Goodbye".
 * The Buffy the Vampire Slayer Musical Episode "Once More With Feeling" is a bizarre case of a Non Sequitur Episode that is based on an utterly ridiculous premise, is important to the season's major story arcs and remains one of the most loved episodes of the entire series, like a Non Sequitur Episode and Wham! Episode mixed together.
 * The season 4 finale, "Restless", starts like this. Eventually what's going on is clarified, as well as the fact that it contains large amounts of Foreshadowing.
 * "Superstar". Season 4, ep 17.
 * Also, the season 3 episode "The Zeppo" can be seen as this, diverting from the building plot threads of that season to tell a completely zany, full-out self-parody of every Buffy trope in the book.
 * All of these just go to show that Tropes Are Not Bad in the hands of a skilled writer.
 * Crime Story was stylishly moody and gritty...then there was the 2nd season episode "Pauli Taglia's Dream". It did show how mobster Ray Luca and his goofus flunky Pauli had earlier survived a nuclear bomb test, but through Pauli's point of view - complete with cartoon sound effects, Three Stooges slapstick, and cuts of him lip-synching Bobby Fuller's "I Fought the Law" wearing impossibly high rockabilly hair and a radiation suit.
 * Over its last two seasons it became clear that Day 6 of 24 was a Non Sequitur Season. Events like . Day 7 has its couple of Non Sequitur Episodes in which.
 * Similarly, many of the events of Friday Night Lights Season Two aren't referenced in later seasons, the most Egregious of which would be . Other stuff happened that season, too (Matt and Grandma Saracen's maid, Buddy raising a ward named Santiago), but the only major event to happen that season with any significant impact on future seasons is Jason Street.
 * Breaking Bad has the episode where Walt becomes obsessed with killing a fly that has somehow gotten into the meth lab. There are a few moments of legitimate character development and overall series value to this episode, but for the most part, it's a big steaming pile of Non Sequiturs.
 * The 1980s War of the Worlds episode "Candle In The Night". This is a show that thrived on an overarching conspiracy by aliens to overthrow the Earth, interpersonal conflict between the cast and gratuitous violence that pushed the limits of what syndicated television could show...and someone decided that an entire episode should be focused on a supporting character having a birthday party. The plot follows one of the team members, Debi, who sneaks out of the Blackwood Project's headquarters to have a birthday party with a bunch of random kids she meets. There's no real tension or drama in the episode, and none of the characters or events are mentioned again.
 * The Sarah Connor Chronicles had a surreal, cyborg-free episode where Sarah is in a sleep clinic and is haunted by nightmares.
 * The Odd Couple had a flashback episode that parodied the James Bond films and featured Felix and Oscar's fathers.
 * The Kids in The Hall episode "Chalet 2000" was one long Buddy Cole sketch (with it's own credit sequence), and to top it off, Queen Elizabeth appears and ends up sleeping with a talking beaver.
 * Power Rangers Ninja Storm while surfing Tori got into a major wipe out, and wind up in a Mirror Universe where the Rangers are the bad guys and Lothor and his goons are good guys. She eventually gets back to her own universe by getting wiped out again.
 * Fresh Prince of Bel Air had a weird episode, which is all about Will and Carlton making up a story, where Will testifies against a murderer, which forces him and the Banks family to go into hiding in a hillbilly community in the middle of nowhere. Just so Jazz will finally lose to them in Poker.
 * The UFO episode "Mindbender" had Straker hallucinate that he was an actor in a TV series about UFOs. One memorable scene had him wandering around the actual UFO soundstage, showing the HQ and moonbase sets.
 * Similarly, Charlie Drake's Britcom The Worker ended its original black and white run with an episode in which Drake is confused to discover that he's actually a comedian in a Britcom. Drake seemingly liked this ending so much he used a variation of it a few years later when the show was revived in colour. There's another episode in which Drake's character gets hit on the head by a boomerang (a deliberate aversion of and reference to Drake's song "My Boomerang Won't Come Back") and suffers some weird hallucinations, ending with a trial in which he is the judge, jury, barrister and defendant.
 * Lizzie McGuire has the episode where Lizzie and Matt switch bodies.
 * Roseanne had some of these, to the point where it may not even count anymore. To set out a brief list, there were a few Halloween Episodes that seemingly broke reality, a few episodes that were All Just a Dream, and toward the end of the series, plenty of them, such as episodes where Roseanne posed for Playboy, won Miss Universe, and, well actually the entire final season was this after they won the lottery.
 * Wolf Lake did this in the episode "Leader of the Pack", in which an incident is presented as narrated to a team of investigators by Graham Greene's character Sherman Blackstone. To say that he's an Unreliable Narrator is an understatement; the episode is hilarious and basically told from first-looney's point of view, with Blackstone admitting to telling the investigators the kind of story he would find fun to hear. Random daydreams and Fan Service are inserted into the story, and salacious elements such as a married pair of gay bank robbers who also happen to be brothers are included. Elements that would actually be pertinent to the story are glossed over, such as brushing off murders with comments such as "drinking problem".


 * A sixth season episode of Mystery Science Theater 3000 featuring the film Last of the Wild Horses has the first segment take place in a Mirror Universe where Frank and Dr. Forrester are the test subjects.
 * A later episode had Pearl in the theater quipping with the bots while Mike hung out with Observer and Bobo on the planet below.
 * The B-plot of the How I Met Your Mother episode "The Mermaid Theory", in which Future!Ted's usually impressive memory breaks down while telling his kids about a fight Lily and Barney once had, and he starts describing things that make no sense, like a motorcycle roaring through McLarens, Barney magically levitating a beer bottle, or Barney and Lily switching personalities; then going "Wait, wait, that's not right" and starting the whole story over again. This causes an unusually high degree of Medium Awareness on the parts of "Barney" and "Lily", who are shown referring to the topic of their fight in-dialogue as "something" ("I'm still mad at you because of something!") because Ted can't remember what they were upset about, and at one point they wind up suspended in limbo, casting glares at the screen and checking their watches impatiently while Future!Ted mutters "um...hang on...let me see..." to himself.
 * The Cosby Show had one episode written by Rudy, which featured the cast as fairy-tale characters, clothed in costumes made to look like crayon drawings.
 * The Bones fourth-season finale features Booth as a nightclub owner, Brennan as his wife, Hodgins as a hard-drinking novelist, Cam as a detective, etc.
 * The Mary Tyler Moore Show had an episode where each of the major male characters imagined what it would be like if they were married to Mary.
 * Farscape has a few interesting examples. "The Crackers Don't Matter" had the entire crew trying to kill each other over some crackers, while "Won't Get Fooled Again" was... Well, The Dragon was wearing bright red pumps at one point. That was a tame scene.
 * Similar to the Mad About You example noted above, Friends had a "what if?" episode that explored the possible consequences of Joey becoming a star with Chandler as his personal assistant, Monica staying fat, Ross's Closeted Gay wife staying in the closet and keeping their marriage going, Rachel having gone through with her marriage (thus never meeting any of the friends) and Phoebe somehow becoming a stock broker.
 * The X-Files did this a few times, most notably in its The Rashomon episodes "Jose Chung's from Outer Space" and "Bad Blood".
 * News Radio had two special episodes that were set out of continuity: one featuring the staff of a radio station in space, and another where they run a radio station on the Titanic.
 * Episode 200 of Stargate SG-1, which Word of God states is out of continuity.
 * "Window of Opportunity" also counts. Golfing through the Stargate, resigning to kiss someone of a lower rank, cycling through the tunnels of the base with a bicycle bell...
 * Merlin. In the middle of the season that also included Merlin losing his first love, Arthur discovering the truth about his mother, Morgana's Start of Darkness and the introduction of two of the most powerful/terrifying villains the show had ever showcased (Morgause and the Witchfinder), two utterly superfluous episodes were devoted to a troll successfully marrying King Uther and becoming Queen. It was a great performance by Sarah Parish, but the humor was made up of pratfalls and Toilet Humour, Arthur, Gwen and Morgana were utterly (and uncharacteristically) useless, the audience was scarred for life by being forced to watch Uther go to bed with a troll, and after the episode ends, no one ever again thinks to mention that a shit-eating troll had been the Queen of Camelot for an extended period of time.

Music

 * "Bakerman" on the Midnight Oil album Red Sails in the Sunset. It's a Japanese school band playing an instrumental oompa ditty, in the middle of an otherwise pre-alternative rock album. Also very Mood Whiplash.
 * Synchronicity: "Mother", a repetitive tune in 7/4 with screamed vocals and weird lyrics, shows up after the comparatively normal "Synchronicity I" and "Walking in Your Footsteps".
 * "You're Gonna Die," a 9-and-a-half minute song (using the term loosely) at the end of Reel Big Fish's We're Not Happy Till You're Not Happy album. It's essentially nothing but screaming and static in the same vein as "Revolution 9" and even contains a Non Sequitur Scene of its own in "Aaron is Made of Babies," a one-minute novelty song thrown smack-dab in the middle of the hectic track.
 * "Anyone's Daughter" from Deep Purple's Fireball. The lyrics are typical DP - a man sleeps with a bunch of women and marries one of them when he gets her pregnant - but the music is in a C&W style that's out of place for this period of the band.
 * Tell Me What To Swallow by Crystal Castles. A dark acoustic song in the middle of electronic stuff. Also Mood Whiplash.

Video Games

 * City of Heroes has this issue with the Mission Architect system. Due to the overwhelming amount of player-made content in the database and a ratings system that leaves something to be desired, it's inevitable that Non Sequitur Story Arcs will come up fairly frequently in any random sample. If the first time a player tries the system results in having one of these thrown at them it can easily be the last time they will ever bother with the Mission Architect.
 * Which is why a number of authors have been taking it upon themselves to review arcs and compile lists in the official forums make it easier to find the "good stuff."
 * Atlantica in Kingdom Hearts II also counts. It has absolutely no Plot relevance and features the characters singing in order to keep Ariel happy with undersea life. Even more of a Non Sequitur is the fact that the entire story of the world is based on mini games and seems to just be an excuse to put the world in the game.
 * Also odd was how nobody seemed to remember any of the events that happened in Atlantica in the first Kingdom Hearts game; except for who Sora is. Ariel just...forgot how the last time she made a deal with Ursula ended, and Ursula forgot...dying.
 * The minigames were a way to include the world itself, while avoiding having to include the underwater combat from the first game. Notice how Neverland (which featured a similarly-controlled "flying combat" mechanic) doesn't get a return appearance, just a Peter Pan summon cameo?
 * Because Disney seems to have a hard-on for Peter Pan, having been used in every Kingdom Hearts game, the focus for a level in Epic Mickey, and so on, regardless of not being Plot relevant, including getting in over The Jungle Book in Birth By Sleep?
 * Metal Gear Solid Mobile. It takes place at a weird point in continuity and gives Snake technology that he shouldn't have yet in addition to making him confront The Patriots long before he should even know they exist; Otacon, instead of being chipper Codec support, is the "ninja"; and everything is revealed to be All Just A Virtual Reality Simulation Snake has been placed in by The Patriots for a reason that is not revealed and never will be. Snake also gets his memory of the events erased, but Otacon doesn't, thus implying that in addition to providing needlessly cryptic advice through sinister channels he then kept the entire ordeal and critical information secret from Snake for at least two years.
 * Star FOX (the 1993 Super NES game) combined this with an Easter Egg -- "Out Of This Dimension".
 * Happens halfway through Kid Icarus: Uprising, when  This lasts for about 3 chapters and then it is never mentioned about again when its done.
 * Actually it is brought up a few times afterwards. In fact it's the first thing Pit remembers
 * The World Ends With You has Another Day, you can access this episode after you complete the main storyline and takes place in an alternate universe where Tin Pin Slammer is Serious Business.
 * Every cutscene in Crash: Mind Over Mutant, which seems to follow a different art style every time.
 * The "What If?" mode in the PS 1 Spider-Man game. It took the base plot and added tons of silly lines. "Doc Ock has trapped me...and I can't stop dancing".
 * Command & Conquer: Red Alert had two: the secret Giant Ant missions and one multiplayer map set on the moon which randomly reassigned all the units' weapons, so you had helicopters firing flamethrowers and V2 rockets.
 * The Fallout: New Vegas DLC Old World Blues has your brain, spine and heart being stolen by incompetent Mad Scientist Brains In Jars who are all drugged out of their gourds, an area exhibiting all the craziest pre-War SCIENCE! (and since this is Fallout, that's really saying something), a gun with a living dog brain as a component, a talking stealth suit that calls you her best friend and plays pranks on you, a base full of talking appliances who all hate each other, and a surreal conversation with your own brain in a tank, who sounds suspiciously like Seth McFarlane if even you're a woman.

Web Comics

 * Sluggy Freelance brought us Chapter 63: Safehouse, bringing us Torg taking up gardening, and coming up with increasingly surreal plans to protect the garden from chipmunks and deer, that all fail spectacularly, Bun Bun robbing a bank with the help of a talking bear and an old man with a huge mustache, and the entire main cast getting addicted to the latest computing technology and the possibilities it offers, and getting tangled up in weird on-line community shenanigans, and playing a suspiciously addictive online game which, after a hacker attack, starts a zombie apocalypse that only affects animals.
 * While randomness was par the course for Sluggy's first decade or so, what makes this a Non Sequitur Episode is that it went on for an extended period of time right after a very dark storyline, and pretty much ignores all of the lingering questions, including the fate of a character that the group lost contact with and is on a dangerous mission, a character that refuses to accept that her friends thought to be dead are alive, and a plan to finally get rid of the resident physcopathic, ninja, Stalker with a Crush that caused said friends to become almost dead. Word of God seems to indicate the arc will bear no overall importance as well.
 * El Goonish Shive:
 * This strip.
 * Any of the Newspaper strips, which are specifically not part of EGS continuity.
 * "Mulberry's Epic Yarn"
 * High Fantasy webcomic Exiern spends a month at the bizarro as part of an Overly Long April Fools Gag when it is suddenly re-tooled as a a group of trendy twenty somethings hanging out at a coffeeshop/strip club.

Web Original
"Narrator: And so what happens means that it was nothing and just... (Scene change) The Nostalgia Critic: Ughhhhh... Big Lipped Alligator Moment A BIG LIPPED ALLIGATOR MOMENT! * fanfare*"
 * Used and lampshaded in the fan sequel of Half Life Full Life Consequences: "What has tobe riped off". :


 * The Nostalgia Critic had one himself with "You're A Dirty Rotten Bastard". Opened and closed by Santa Christ (who after Kickassia heavily dislikes the Critic) like it was a story, going against a lot of established characterization to make Critic look like the biggest jackass in all the world, and never mentioned again.
 * Charlie the Unicorn.
 * Creepypasta Example: Candle Cove.

Western Animation
"Rolf: Hello, Ed-Boys! Many doors, yes? Rolf's Second Head: Too much for... Rolf's Third Head: ...Couch-potato Ed-Boys like yourselves? Eddie: A three-headed Rolf. Yawn."
 * As funny and clever as it may be, the Teen Titans episode "Fractured" feels like that. I mean, we learn that there's a whole dimension that exists just for Robin and then the Robin from that dimension (Larry) breaks his finger and everything becomes chaotic. It's hard to believe that no one talks about that ever again.
 * I'm pretty sure he's supposed to be from the 5th dimension, a la other DC characters like Mister Mxyzptlk and Bat-Mite.
 * The episode gets a Call Back in an issue of the Teen Titans Go comic, with Larry bringing along the fifth-dimension "Larry" versions of the rest of the Titans.
 * Teen Titans had at least one completely insane episode per season, and the tone of the average episode wasn't much less wacky. If anything. the episodes which focused on continuity and drama were the ones out of place. "Fractured", "Mad Mod", "Bunny Raven/How To Make a Titanimal Disappear", "Mother Mae Eye", and "Episode 257-494" (where Control Freak causes the Titans to become Trapped in TV Land).
 * Well, the last one was referenced in the big Finale, when Control Freak was using the Lightsabers he got from TV Land.
 * Oddly enough, most Non Sequitur Episodes are right before the season finale. Going from a deranged Hansel and Gretel Whole-Plot Reference to Raven fulfilling her destiny and ending the world, or from the aforementioned Larry episode to Terra picking off the team one by one led to some absolutely beautiful Mood Whiplash and gave the show its signature schizophrenic tone.
 * A good rule of thumb was this: if the opening Theme Tune was in Japanese, as opposed to the usual English, you were about to see some weird shit.
 * Especially when the one singing in Japanese is Larry.
 * Except "Nevermore"- though that one is weird for a solid chunk in the middle, it's less "crazy and funny" weird and more "Mind Screw, Uncanny Valley, and a side dose of Nightmare Fuel" weird, and the central plot about Raven fighting her Enemy Within is serious.
 * "Fear Itself" can function as a fairly good bait-and-switch in terms of this. The episode starts out silly, the first part being the debut of Control Freak, where the Titans fight him in a video store and he brings things like candy to life and turns them evil. Then things get dark.
 * Codename: Kids Next Door episode "Operation: R.E.P.O.R.T." is set entirely in the character's parody-rich imaginations, while "Operation: W.H.I.T.E.H.O.U.S.E." was also All Just a Dream and made self-contained sense until the very end when Number 1 turns into a big monster for no adequately explained reason.
 * Samurai Jack: "Chicken Jack". That is all. What's really odd about "Chicken Jack" is that it's almost a remake of the previous season's "Jack and the Smackback", but with Jack as a chicken.
 * And the episode where Jack ends up nude. Oh, so much. The Non Sequitur Scene with the randomly-appearing elephant-headed fairy is just the tip of the iceberg.
 * Ed, Edd 'n' Eddy: "1 + 1 = Ed", otherwise known as the episode where Ed asks Double-D a bunch of questions, the questions become increasingly philosophical, reality and imagination begin to melt into each other, existential crisis manifests itself into abstract surrealism, and everyone and everything around them becomes horribly deformed and absurd.

"Jason: Man, I do not want to meet the kid that dreamt THOSE things up."
 * Adventures of the Galaxy Rangers -- "Mothmoose" is the infamous one, but just about anything starring Kid Appeal Character Buzzwang gets filed here.
 * Super Robot Monkey Team Hyperforce Go! has a recap episode called "The Skeleton King Threat", in which the Monkey Team finally gains the ability to talk to humans and tells them about their adventures so far, including babbling on about some sort of level system they use to label how threatening a monster is. This system is used through the entire episode heavily but is never mentioned again in the series. Even the fandom almost never uses this stuff.
 * Dexter's Laboratory: Monstory. Really, what?
 * No, sorry, the winner of that achievement goes to Dexter and Computress Get Mandark. It was written by a six-year-old, and is psycho-freaking-loco.
 * Phineas and Ferb
 * "Rollercoaster: The Musical". It's essentially a Musical Episode version of the pilot. But there's random stuff going on, and most of the songs and scenes are never mentioned after they occur, and the barrage of Cameos in the final song, which itself is a Non Sequitur. And I highly doubt it will be mentioned again.
 * On Phineas and Ferb, they mention everything again.
 * It's very self aware about its Non Sequitur Episode status. The episode constantly Lampshades its repeating of the original episode, as well as the fact that it's incredibly weird even by the standards of the show.
 * Arguably, the 20th episode of the third season of Winx Club (the pixies' A Day in the Limelight episode) may count as this. Although it was referenced in episode 22 when Valtor reminds the Trix about how they were defeated by the pixies.
 * Season 2's episode 14 may count too, or at the parts involving Bloom, Flora, Sky and Brandon travelling to Sky's homeplanet and trying to save Diaspro. That part of the episode is never mentioned again.
 * South Park: "Not Without My Anus." Purposeful Non Sequitur Episode on the part of the writers as an April Fools' Day joke, delaying the conclusion of "Cartman's Mom is a Dirty Slut" in favor of a ridiculous Terrance and Phillip story.
 * "Woodland Critter Christmas" is also off of the board. Justified Trope because.
 * Brought up in the Imaginationland trilogy.


 * Skeletor, a classic two-dimensional villain with no previous redeeming qualities whatsoever, abruptly turns good for no apparent reason other than "the Spirit of Christmas" in the He-Man and the Masters of the Universe and She-Ra: Princess of Power Holiday Special. This had no bearing on later evil; it was just something the eighties did, apparently.
 * This may just be a relatively unexplored side of Skeletor, though. Behold: Skeletor, Cake Boss.
 * In another Filmation show, Bravestarr, main henchman Tex Hex has a similar moment in a Yet Another Christmas Carol ep. Subverted in that the woman he saves is his one great love, now lost to him, and when the ending moral is shown, Marshal Bravestarr takes care to tell viewers not to expect Tex Hex to change after this.
 * The Venture Brothers has this in the form of "Escape to the House of Mummies! Part II." While Doctor Venture and Orpheus have an argument over whether science or magic is better and fill out Mad Libs to pass the time. Meanwhile, Brock and the boys are trapped in Egypt with Edgar Allan Poe, Sigmund Freud, and an alternate-timeline Brock in scuba gear. The episode ends in the Arctic as one Brock slices open Poe's carcass and puts the freezing Dean inside for warmth.
 * Yes, that title is right. There was no "Escape to the House of Mummies! Part I", and just a preview for "Escape to the House of Mummies! Part III".
 * Also, Caligula was there too. And no, none of that makes even the slightest bit of sense.
 * SpongeBob SquarePants has many, but the most notable is probably "Dear Vikings", in which Spongebob and Squidward are kidnapped by vikings, who force them to work in their ship.
 * The episode "Party All The Time" from Aqua Teen Hunger Force. Frylock contracts melanoma (a form of cancer), which causes him to slowly decay and become sick (which leads to all the fries disappearing from his head, and him dressing in a hat to conceal the fry loss). Shake and Meatwad try a number of tricks to cheer him up (including a performance from Andrew WK), but they find out that it's no use. Suddenly, at the end, Frylock goes to a doctor, who tells him that the melanoma is reversing and that he will eventually get better...and the episode ends, and nothing in it is ever referenced or mentioned again.
 * The New Batman Adventures has always been a little more lighthearted than it's predecessor. However, the episode "Critters" was just plain out there. A farmer and his daughter genetically engineer farm animals so they can become bigger. After a cow runs amok at an agricultural expo, they're ordered to cease their growth hormone experiments. So they send giant preying mantises, demonic chickens, and a talking goat to attack Gotham City. The Agony Booth said it best "I wish I was making all this up, believe me. It’s like David Lynch made a Batman cartoon and forced the networks to air it."
 * In point of fact, it was written by Steve Gerber (the guy who gave the world Howard the Duck and other strangeness) and Joe Lansdale.
 * It's been reported that Paul Dini has claimed this is his favorite episode. The man who hates "I've got Batman in my Basement" supposedly likes this episode? I don't think so.
 * Quack Pack has the episode "All Hands on Duck", which was about Donald Duck being recruited back into the Navy and later fighting a giant bomber drone. Everyone in this episode besides Donald and Daisy is for some reason a Dogfaces.
 * One American Dad episode had the characters star in a James Bond spoof. And there's another one about an evil, singing hot tub where Stan and Francine abruptly die, and there is No Ending.
 * Disney's Alice in Wonderland.
 * Ben 10 has the episode "Gwen 10". In that episode, they were all back to the first day of summer and Ben was the only person remembering the previous episode's events. As the title episode suggested, Gwen was the one to find the Omnitrix this time. At the end, it got detached from her and Ben thought he'd finally have it like in the original timeline but it went to Max instead. It becomes Hilarious in Hindsight when it's revealed in a later episode that the person who sent the Omnitrix to Earth expected Max to have it in the first place. The next episode had Ben with the Omnitrix again with no explanation and "Gwen 10" events were never mentioned in any other episodes of the series.
 * The start of the episode explained how it worked much like a comic book plot, of different realities and different stories. Gwen 10 (or Max 10) probably went very radically in its own direction, but for the sake of continuity and story of the main plot hook, went with Ben 10 still having the Omnitrix. However, that doesn't explain how the mainstream Ben went to the Gwen 10 reality, how he returned to his own, or what happened to that reality's Ben.
 * Supposedly, all episodes that start by displaying a comic book at the start are such episodes. Another one had the series ending with Ben starting school again—except it was just before the actual series ending and contradicted it.
 * In Star Wars: The Clone Wars season four there's "Mercy Mission" and "Nomad Droids" - episodes that focus on R2-D2 and C-3PO in their own misadventures when they get separated from the army. The episodes pay homages to various works like Alice in Wonderland, The Lord of the Rings, Gulliver's Travels, The Wonderful Wizard of Oz, and Real Steel.
 * Also possibly an homage to the 1980s Star Wars: Droids cartoon, which contained many Non Sequitur Scenes if not entire episodes (C-3PO blinking and sprinting, R2-D2's hammerspace gadgets and breakdancing).
 * Season three has the Mortis trilogy of episodes. The basic plot is that Obi-Wan, Anakin and Ahsoka get stranded on a surreal planet whose only three inhabitants - Father, Son and Daughter - are the living embodiments/avatars/personifications of the Balance of the Force, the Dark Side and the Light Side, respectively. Unsurprisingly it is never referred back to and, aside from the anvilicious hints that Anakin has more sympathy for the Dark Side than is strictly healthy, comes off as extreme padding.
 * It later gets tied into the story of Fate of the Jedi's Eldritch Abomination Big Bad Abeloth. With mixed results.
 * Mega Man had more than its share of camp, but by far the most bizarre and memorable example is "Curse of the Lion Men" - a passing comet awakens a group of ancient mummified lion-men who aim to conquer the world by turning every non-robotic human on the planet into lion creatures using Eye Beams. No, it doesn't make any more sense in context.
 * The episode "Da Boom" in Family Guy.
 * Daria. "Depth Takes a Holiday", which is, shall we say, uncharacteristically whimsical for the series.
 * The Donald Duck short "Duck Pimples". Donald listens to scary stuff on the radio, causing his overactive imagination to bring a bunch of shady characters to life. First, he envisions a creepy yet silly salesman who drops a lot of horror novels on Don's sofa. As he starts reading one, more weirdos emerge from the book, such as a gruff police officer who accuses Don of stealing a dame's pearls, accompanied by the lady herself. After some Non Sequitur Scene-y gags, both are about to murder Donald because he hasn't "confessed" yet. Just before they cut his throat in half, the author himself exits the book and reveals the officer to be guilty. The cop confesses it was indeed him, but he ain't amused, and as he steps back to go back into the book's pages, he "shoots" Donald with thin air; he reacts just as if had been shot for real. Terrified, the dame and the author go back to the novel as well. Donald regains conscience and immediately shakes the book to confirm it all ended, as some offscreen voices tell him it was all imaginary. He's not convinced and the cartoon ends with him trembling in fear, slowly muttering to himself "Yeah...Ima......Gination"... Just in time for the pearls to appear on his neck before the iris out. What the hell, Disney!?
 * An episode of Avatar: The Last Airbender did this. Aang was unable to sleep due to nightmares about facing the Fire Lord in the invasion. This culminated in him having a series of weird dreams until the end, where he's finally able to sleep peacefully due to the others making him a bed and giving him moral support.
 * In Stickin' Around, every day is at the bizarro considering that most of an episode happens in the main character's imagination.
 * While Toon Physics are practically nonexistent as a rule to begin with, Duck Amuck shatters any conception of the fourth wall by having Daffy Duck arguing with and being screwed around with by the animator
 * got a taste of his own medicine in Rabbit Rampage, with the animator being
 * Early Bob Clampett masterpiece Porky In Wackyland was one of these for animation itself. It almost single-handedly established that every piece of animation did not have to be a rip-off of Disney's latest short.
 * The Rugrats dream episode. We see Chuckie wake from each dream, and supposedly enter the real world, only to discover slowly that he is still dreaming; with strange settings and weird stuff like Spike talking.
 * The Futurama episodes "Anthology of Interest I", "Anthology of Interest II", "The Futurama Holiday Spectacular" and "Reincarnation".
 * The Simpsons has quite a few, most notably "The Computer Wore Menace Shoes" and "Saddlesore Galatica". What's weird is that they began as ordinary episodes and quickly went into weirdness.