Story :The 2021 Super Sentai, Kikai Sentai Zenkaiger, debuts in a movie! Previous generations of monsters show up but team leader Zenkaiser won't let them have their way! Previous generations of Red Rangers run into battle too! Zenkaiser isn't a Red Ranger, but does that even make sense? With the power of the Machine World, he'll defeat them at Full-Force Full-Throttle!