Lupin and his team are kidnapped by Greco, some sort of philanthropist who has sworn to rid the world of all criminals. Trapped in a giant underground basement, they're challenged to find a way to get out, but they are informed by Greco that one of them has been secretly brainwashed in order to become his personal puppet. Unable to find out who the puppet is that is trying to kill them all, Lupin and the others end up suspecting each other.