You show up alone to save the one person who believed in you, and every single friend tells you no. Kinnikuman walks into that tower anyway. The Warrior Choujins are stronger, smarter, and they keep coming, and he has nothing but stubbornness and the kind of heart that makes you want to root for an idiot. This movie understands something that most wrestling stories forget: the match you win alone matters more than the one where everyone showed up.

Meat has been kidnapped by Iron Mask, and the only way to rescue him is with the treasure of Inmora Island. That treasure lies hidden in the Seven Story Tower, which the brutal Warrior Choujin guard. Kinnikuman asks Terryman and the Justice Choujin for help, but for reasons unknown every one of them refuses. So he travels to Inmora Island by himself to take on the Warrior Choujin, only to be overwhelmed by their sheer numbers. The film is an action comedy with a sports flavor.