Ahead of No. 1 Sentai Gozyuger's premiere, in a conference room somewhere, Gokai Red, Zenkaizer, Kamen Rider Decade, Kamen Rider Legend, and Gozyu Wolf are sitting in a discussion table.

Bakuage Sentai Boonboomger has been invited to act as witnesses. However, a remnant of the Hashiriyan named Manhole Grumer appears and steals the jewel that's been passed down in the Trickle royal ...