Divided into three acts, the first act is about the Zenkaigers dealing with a new Kashiwa Mochi World and Zocks declares himself as "Kashiwa Mochi King", the ruler of Zenkaitopia?! In the second act, it's been a year since Taro left and the five companions continue to fight as a team with Jiro as their leader. Taro later regains his memories, only for his companions to ask him to leave the Donbrothers. In the final act, an incident caused the two worlds to connect, thus a full-throttle miracle battle between the two Super Sentai begins!
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!