A group of young pirates from space come to Earth to obtain the "Greatest Treasure in the Universe", which can only be acquired after obtaining the Ultimate Powers of the 34 Super Sentai.

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 ...