The Lupinranger track a Ganglar, but hold back when he meets with Destra; Hilltop is ambushed while transporting new items of the Lupin Collection; Kairi and Keiichirou each end up with an item, which results in a duel to see who gets both.

Keiichirou is annoyed at losing to Lupin Red, causing Tsukasa to snap him out of it, and Kairi is reveling in his supposed anguish.

The Patranger are on the case after a young boy tries to fight the bad guys, reminding Keiichirou of himself as a boy, and receive a new collection piece in the process. The Lupinranger discover that their are two Ganglar, but find that between the two of them, they only have one collection piece.

All three Patranger are rushed to the hospital, with Keiichirou having the most extensive injuries due to being poisoned. Umika and Kairi go to visit the police, but Sakuya and Tsukasa take off because their is still a Ganglar on the loose.

A new phantom thief arrives from France and scares off a Ganglar. The next day, Kairi is shocked to learn of this when a man loudly exclaims to him that he is Lupin X, but Keiichirou then arrests him. Hilltop hears of this and barges into the interrogation room where he explains that the man is actually a cop.

Neither the Lupinranger nor the Patranger trust Noel, and so he must try to change that.

Noel gets a tip about an illegal auction having a Lupin Collection piece on display, so he and Umika go undercover with Kogure's checkbook.

Tooma tries helping out a man on the street and gets persuaded to join a martial arts class. Much to his surprise, the assistant teacher of the class is Sakuya!

The Lupinranger show up ready to fight a Ganglar, but get turned into children instead! Umika drops her VS Changer, which is found by the police, and so the thieves must steal it back.

The Lupinranger learn that Noel got himself caught in a trap while trying to obtain Lupin Magnum and go after it as well; the Patranger deal with a Ganglar that has been stealing guns.