Misguided Missile

A guided missile has been launched at an orphanage or one of the protagonists' planes, usually once it's been damaged and left limping along with no anti-missile defenses. Those onboard can't escape and get a nice, long look at their oncoming doom as they say their prayers... till the Ace Pilot flies his plane in front of the missile, making it switch targets and leading it away.

The Ace Pilot either has the skills to blow it up or a plan (well, more like on the spot improvising) to destroy or escape from the missile. Usually by deftly dodging and making it hit a cliff or asteroid, just plain letting it hit his plane but using an Ejection Seat beforehand, or best of all, leading it back to the launcher! If he's being chased by the Macross Missile Massacre, then expect his new target to go "Oh Crap".

Needless to say, the missile will not have any Friend Or Foe recognition software to tell it to either dodge the ally plane or not explode.

This can very easily turn into a Heroic Sacrifice if he can't destroy or evade it, or worse ram an enemy target to make sure both he and the missile hit it. Compare Grenade Tag.

Anime and Manga

 * Mao does this to protect a helicopter full of refugees in the first episode of Full Metal Panic! The Second Raid. Of course, it was justified that her AS is custom-equipped with electronic warfare equipment. Plus the fact that she did this with ARF missiles which also exist in real life; according to The Other Wiki, they are specifically built in a way that if someone attempts to jam them, they lock onto the jammer instead(!).
 * The Black Lagoon crew divert heat seeking missiles with a flare, before lauching their boat in the air and taking the attacking helicopter down with a torpedo.
 * In Yu Yu Hakusho, Yusuke escapes several explosive homing shuriken by accidentally misguiding them in this way.
 * In Dragon Ball Z, Goku defeats Frieza by causing him to guide his own guided cutting disc attack into him. This was actually a Double Subversion, as he had tried it once before, and Frieza dodged.

Film
"Alfa sonar officer: Torpedo is in active homing... torpedo has acquired... (sick look)
 * In Air Force One, a Red Shirt F-15 pilot deliberately flies into a missile to save the heroes.
 * Which makes the Red Shirt a jet fighter pilot secret service agent, taking one for the President.
 * The Incredible Mr. Limpet. A wolf pack of Nazi submarines has fired torpedoes at an Allied convoy. The title character discovers that the torpedoes have been modified to follow his "thrum" (the booming call he can make). He uses this to make the torpedoes follow him away from the ships and hit the U-boats that fired them.
 * The Hunt for Red October:
 * Marko Ramius, the Soviet's submarine captain equivalent of an Ace Pilot, does this with a ballistic missile submarine, defeating not one but two torpedoes fired by a lurking "Alfa"-class. The first he charges, reducing the torpedo's run distance past its safety arming setpoint and resulting in a dud; when the "Alfa"'s captain orders all safeties off the second torpedo, Ramius leads the torp back toward the boat that fired it.

Alfa XO: You arrogant ass - you've just killed us!"

"Sarris: You fool! You failed to realize that, with your armor gone, my ship will tear through yours like tissue paper. Jason Nesmith: And what you fail to realize is my ship... is dragging mines!"
 * The second torpedo actually gets misguided twice; a few minutes earlier it has the October cold until the more maneuverable Dallas interposes itself then crash-surfaces to get away.
 * There is also the time Ramius dodges a plane-dropped torpedo by making a sharp turn just before hitting a rock, causing the torpedo to be momentarily confused due to the bubbles.
 * Frankie in Sky Captain and The World of Tomorrow, who leads an underwater crab robot's torpedo away and ejects when she can't blow it up. Sky Captain uses the crabs same torpedoes to destroy it by leading them back to it.
 * Star Wars Episode II Attack of the Clones Obi Wan ejects the spare parts for Jango Fett's missile to hit.
 * In Revenge of the Sith Anakin makes two missiles following him hit each other by spinning his fighter around.
 * Pulled off by Topper in the finale of Hot Shots!
 * Used to introduce us to most of the titular dog's powers in the intro to Disney's Bolt, Bolt grabs a magnetic landmine, and unintentionally gets a homing missile on his tail, which he runs away from, leading it back toward a different helicopter which he jumps over, but the missile hits home.
 * Galaxy Quest


 * In a variation on the theme, a Tomahawk missile is launched at an Arms Fair in the Pre Titles Sequence of Tomorrow Never Dies. James Bond realises there is a nuclear torpedo attached to an L-39 trainer there. When the Royal Navy are unable to self-destruct the inbound Tomahawk, he nicks the plane.
 * The Iron Giant is a partial example - was the target, and he just escaped from the town to save it. He had no plan or intention to save himself.
 * Payday, the movie version of Der Clown, shows Dobbs as he sends a heat-seeking surface-to-air missile chasing his helicopter back into the SAM which is so glowing hot that it must emit more heat than the helicopter's gas turbines.
 * In Blue Thunder, this trope is inverted, in that the protagonist's helicopter is the intended target of heat-seeking missiles fired at him by Air Force interceptors, but he manages to decoy them away using the heat from, respectively, a Chinese barbecue shop and the sunlight reflecting off of a skyscraper. How this manages to avoid killing anyone is rather blatantly ignored.
 * The Man Called Flintstone has Fred and Barney reprogram the missile and then trick the villains inside the missile as it flies off into deep space.
 * The hero of Interceptor pulls this at the end to shoot down the bad guy's stealth fighter, despite being unarmed.

Literature
"Corran: "The Y-wings will be targeting the X-wing's homing beacon. Time it right, put the Lancer between the missiles and the X-wing, and you can scratch one Lancer.""
 * In the Wing Commander novel End Run, the Hornet squadron commander sacrifices her fighter to take out a torpedo targeting the TCS Tarawa.
 * Deliberately set up in Rogue Squadron, the first book of the X Wing Series. A Lancer frigate, specially designed to destroy fighters, has just appeared in the picture. Y-wings (slow bombers) can't get close enough for a missile lock without being vaped. The plan is going to be "let the X-wings distract the frigate so the Y-wings can escape," which is suicide. So Corran Horn comes up with a plan:


 * Mara Jade in Destiny's Way fighting some Yuuzhan Vong in a submarine pulls off a High Speed Torpedo Dodge then guides said torpedo right back at them.
 * The Dale Brown book Shadow Command has a demonstration of the Black Stallion Space Plane's superiority over older planes by having one trick a pair of Russian missiles into destroying the planes they were fired from.
 * Inverted in the first Backfire raid on the NATO carrier battle group, in Tom Clancy's Red Storm Rising. Soviet target training missiles launched by TU-16 Badgers decoy US Navy aircraft away from their carrier group, instead of aircraft leading away missiles.
 * Also played straight in the novel, where the anti-sub helicopters of the HMS Battleaxe and USS Reuben James play "decoy" to lure away anti-ship missiles from their respective ships, after it was determined that the Soviets were focusing on the escorts to make the job easier for other Soviet forces to get at the convoys the escorts were defending.
 * And also played straight with the NATO convoys in general, with the use of chaff to decoy missiles away from ships. The problem was that a missile that had flown through a chaff cloud would then attempt to reacquire the closest target in its seeker head, which was often -- if the geometry was right -- another ship. This is Truth in Television, by the way: at least one Royal Fleet Auxiliary ship in the Falklands War may have been lost this way.
 * In the Ryanverse novel Executive Orders, the Chinese purposefully incite an incident with Taiwan by using this as an excuse. A Chinese pilot fires a missile at a jetliner, then claim the Taiwanese are the ones that did it. Unfortunately, they didn't realize that US intelligence capabilities were so good, allowing the Americans to point out several discrepancies with the incident, and ultimately resulting in the formal recognition of Taiwan as a legitimate country.
 * Stewart Cowley's Terran Trade Authority universe - Gerling, the commander of the human forces in the Laguna Wars, reminisces about how he earned his seniority: the missiles of the assault ships in the Terran battlefleet had entered a decay cycle which would result in their unavoidable premature detonation. Unwilling simply to fire them off into the wild black yonder where they might hit unwary ships, he orders a half-built ship to be towed into orbit to act as the sacrificial target.

Live Action TV

 * Twice in the Battlestar Galactica miniseries. Apollo leads a missile away from Colonial One, saving the president, later Starbuck does the same for Apollo.
 * Averted in Season 4 premiere: There are simply too many missiles and while they manage to shoot down the one heading for Colonial One, Zephyr, Astral Queen and a few others do end up getting hit.
 * Done more than once on JAG. And in a separate instance:
 * Star Trek: Voyager. Basically the entire plot of "Dreadnought", in which a sentient missile with a massive anti-matter warhead is convinced an inhabited planet is its authorised target. In the end Captain Janeway is willing to fly Voyager into its path, but fortunately her Chief Engineer is able to deactivate the weapon in time. The plot was repeated in "Warhead"; this time the crew were able to convince the (literally "smart") weapon to blow up the other missiles and avert war.

Western Animation

 * Done in Futurama. With a burning flag. The episode was Anvilicious about flag burning eating.
 * In Star Wars: Clone Wars, Anakin tells his clonetrooper pilots to fire all their missiles across the bow of the destroyer he's flying past. About half of the missiles destroy the droid starfighters pursuing Anakin; the other half start following Anakin, who then leads them into the open hangar of the Confederacy carrier.
 * Done with absolutely no logic in a Secret Squirrel short, where Secret for some reason possesses a "Fire away then turn around and blow myself up missile."

Videogames

 * The protagonist of Unreal: Return to Na Pali in the endgame movie.
 * In another Wing Commander example, "Maniac" has a nervous breakdown when a heatseeking missile he fired at a Kilrathi fighter misses, and hits a Confed transport instead, assisting the kats in destroying it.
 * Captain Jack "Heartbreak One" Bartlett took the missile away from Kei "Edge" Nagase's tail in the second mission of Ace Combat 5.
 * Additionally, it is possible for the player to send an enemy missile back at an enemy this way. However, this results in a miss or player death about 19 out of 20 attempts on ground targets, 4 our of 5 attempts on water targets, and 99 out of 100 attempts on flying targets.
 * In a later mission in Ace Combat 5, Nagase does the same thing with a SAM that was targeting you. She ejects in time, and the next mission is to rescue her.
 * It's possible to do this with the boss Duon's missiles in Super Smash Brothers: Brawl.
 * The Legend of Zelda Oracle of Ages uses an interesting variant of this trope: the boss of the 7th dungeon is vulnerable only to its own projectile attacks. However, rather than luring them back to it (they aren't homing projectiles), you have to use the Long Hook to swap places with the big jellyfish and put it into the path of its own attack.
 * Flash game Dodge. Missiles simply fly towards the player, and you get to hit the enemy with them.
 * The entire first section of the Doomsday Zone boss fight in Sonic & Knuckles/Sonic 3 & Knuckles consists of you doing this to Robotnik's ship with the homing missiles he fires at you.
 * This is how you defeat Megaleg in Super Mario Galaxy, by blowing out the Humongous Mecha with it's own Bullet Bills.
 * And for the giant robot Malletoid in Super Mario Galaxy 2, at least from the trailer, where you have to eat it's own Bullet Bills with Yoshi, and shoot them back at certain points on the robot.
 * In Sword of the Stars, destroyers equipped with the Wild Weasel mission section can spoof enemy missiles into tracking it instead of the more valuable targets. Later patches/addons added the chance of some of these missiles returning "to sender" for a nasty surprise. In the latter case, the firing ship's point-defense weapons will not intercept the returning missiles. The dreadnought Electronic Warfare command section does this along with two other important functions (sensor jamming and long-range scanning).
 * In Portal, turret-launched missiles, though not true homing projectiles, can be sent wherever you please with cleverly-placed portals. This strategy is essential for the final boss.
 * In the Marvel 2099 sections of Spider-Man: Shattered Dimensions, it's possible to do this with the homing missiles fired by Public Eye officers. You need to use Accelerated Vision, though.
 * The purpose of the Target Override Pod in Tom Clancy's HAWX is to lock onto a friendly plane. If a missile starts tailing that plane, the Pod will redirect the missile at the Pod-equipped plane. Then it's all up to the Pod-equipped plane's pilot if the stunt ends up in Taking the Bullet or a High-Speed Missile Dodge.
 * The final mission of the first Medal of Honor has you sabotage a V2 rocket, then launch it to destroy the base.
 * Homing weapons in the Escape Velocity series may lock onto the originating ship if jammed, provided that weapon has a particular Boolean flag turned on in its wëap resource. The games don't feature any examples, but the modders have added them.

Real Life

 * In the Falklands War, this was the job of a number of RN pilots in Sea King helicopters- including Prince Andrew.
 * Either that or Maggie threatened to nuke Argentina if not given (French made) missile deactivate codes by the then French president Francois Mitterrand.
 * During the 2nd Indo-Pakistanese War (1973), an Indian Mig fired a missile at a Pakistani Mirage IIIE, but the missile shot down the Mig's wingman.
 * Similar incidents were recorded during the First Gulf War.
 * In WWII, the American Mark 14 Torpedo was notorious for running in circles. There is only one confirmed case of a circular run sinking the submarine that launched it, but there are several of circular-running torpedoes that either passed over a frantically crash-diving submarine or went off close by thanks to their magnetic influence detonator.
 * Japanese pilot Sakio Komatsu earned himself a place in both Japanese and US history books when he crashed his divebomber to detonate a Mark 14 fired at his carrier. He might not have gotten credit for it except for the fact that several hundred people saw it happen; it wasn't until about 1950 that US interrogators were actually satisfied it was true.