The strongest heroes gather! In the face of the evil scientist's plan to exterminate humanity, 6 warriors will stand up and fight.

Kamen Riders Build and Ex-Aid team up with the legendary heroes of the Heisei Generation - OOO, Fourze, Gaim, and Ghost.

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Main Cast: Atsuhiro Inukai, Hiroki Iijima, Shu Watanabe, Sota Fukushi, Gaku Sano, Shun Nishime, Eiji Akaso, Kaho Takada, Toshiki Seto, Ukyo Matsumoto

Director: Kazuya Kamihoriuchi

Writers: Shogo Muto, Yuya Takahashi

Editor:

Cinematographer:

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