Lupin III/Recap/Vs Detective Conan

While her brother and son are out hunting, Queen Sakura of Vespania is shot. The prince finds her and apparently shoots himself in guilt. This makes the news, which is how Detective Conan hears about it, along with a report that valuable minerals have been found in Vespania. Meanwhile, Lupin has flown into Vespania. With the death of the queen and prince, the young but bratty Princess Mira is next in line. However, there is a popular movement in Vespania that says the princess is too young. Duke Keith hires Jigen as the princess' bodyguard, who uses his access to scope out the Queen's Crown for Lupin, which is protected by a formidable array of sensors.

Despite her protests, Mira attends the opening of a hotel in Japan, though Keith does all the talking for her. Conan stops an assassin with poisoned wine. The agitated princess escapes, with Conan and Fujiko in pursuit. Mira runs into Ran, who looks identical. They trade places, Ran returning to the hotel while Mira gets picked up by Fujiko. Conan pursuits Fujiko on skateboard but is shaken off. Ran agrees to go on pretending to be Mira, partly because she wants to experience more of being a princess, partly for international relations, and also Keith wants a double in case someone is targeting the princess. Fujiko takes Mira out for a night on the town.

Lupin and Jigen find a piece of ore that has incredible stealth properties, though it would have been easier if Jigen hadn't trained the Vespania military to be so effective.

Using a fake press conference at the airport, Ran is taken back to Vespania, though Conan sneaks aboard the jet. Kogoro is given permission to chase after them, acting as assistant to Zenigata, who is travelling to Vespania to stop Lupin from stealing the Queen's crown. Conan triggers an alarm in the landing gear compartment so people find him before he dies at high altitude. This impresses Keith enough that he teams Conan with Jigen to protect the princess, who he thinks is in danger from her uncle, Duke Girald. Ran learns that Mira has only started acting up since her mother and brother were killed. Lupin and Fujiko bring Mira to the cherry blossom tree where her mother and brother died, and Mira decides to return to take her place as queen.

Lupin takes Fujiko back to the palace to collect her payment for taking care of Mira, giving her a break from being a princess and a chance to be a regular teenager. Lupin runs into Jigen, and Ran is reunited with Conan and Kogoro. Lupin takes the opportunity to steal the crown, only the discover Fujiko has stolen his stealth device and the crown before him. However, the police arrive before Fujiko can get away. Goemon is needed to carve a way out for Lupin out of the vault.

Zenigata collects everyone in the palace. Conan shoots him with tranquilizer so Kogoro can present his case, but Zenigata snaps out of it quickly. However, Kogoro is actually Lupin in disguise. They reveal that the queen had removed the bullets from the prince's ammo, so the only one who could have shot the queen was Girald. Girald wants to mine the stealth ore, but Queen Sakura refused because it would pollute. Girald tries to escape, but his trap is neutralized and his guards disarmed.

Mira becomes queen, and Lupin relates the time he met her mother, the last time he tried to steal the crown. Lupin and his gang help sneak Conan back into Japan. Conan vows, if they ever meet again, that he'll arrest them all.

Lupin III vs. Detective Conan contains examples of:

 * Identical Stranger: Ran and Princess Mira.