While out shopping, Luka and Doc respond to a scene where Action Commander Regaeru and his troops are attacking a foreigner. All six Gokaigers appear to engage the enemy, with the main five changing into the Flashmen while Gokai Silver escorts the foreigner to safety. In an act of desperation when Gokai Yellow and Gokai Green prevent his escape, Regaeru uses his Reversal Beam to switch the minds of Luka and Doc before retreating. Back aboard the Gigant Horse, though congratulating the Action Commander for crippling the Gokaigers, Warz Gill reprimands Regaeru for failing in his secret operation and orders him to proceed as the pirates are still in the dark about it. Meanwhile, aboard the Gokai Galleon, as Gai feels that he saw the foreigner from somewhere before, the astonished crew members are figuring how to get Luka and Doc back to normal. Luka (inside Doc's body) decides to go out with Doc (inside Luka's body) forcing herself to tag along. During their shopping spree, Luka chases off two boys harassing two high school girls; in return, the girls exchange phone numbers and take pictures of themselves with him - Luka takes a much delight in it to Doc's dismay. But things get worse for Doc when two mobster-style men chase after her, only to find out the two are actually jewelers who want to hire Luka for her exquisite taste in quality jewelry before Luka gets rid of them. Luka asks Doc why she didn't jump to the next building during the chase, he is shocked to realize that Doc is more concerned about the well being of Luka's body. Back aboard the Gokai Galleon, Gai remembers that the foreigner is the president of a western country, and that a world peace conference is being held today. The crew figures out that Regaeru's plan was to switch the minds of Zugormin units with the state heads in attendance, causing all nations to unconditionally surrender to the Zangyack Empire. Calling Don and Luka, the Gokai Galleon crew arrive at the peace conference as Regaeru is about to switch the world leaders' minds. All guns blazing, the Gokaigers kick Regaeru and his troops out of the building before Gokai Yellow and Gokai Green finish off the Action Commander with their Gokai Scramble variation. As a side effect, the duo return back to normal, but an enlargement beam revives and grows Regaeru. Gokaioh and Goujyujin double-team the Action Commander before Hurricane Gokaioh finishes him off with the Gokai Fuurai Attack. Later, when Doc's date with the two school girls ends terribly due to his dullness, Luka cheers him up by telling him he is cool in a strange sort of way. When Doc asks what is cool about him as they return to the ship, Luka slugs him in the stomach to shut him up.