Nicola, who has been crowned queen of the planet Trickle, has decided to form an alliance with the planet Chikyu. The Bakuage Sentai Boonboomger were invited to witness the event. However, a remnant of the Hashiriyan, Manhole Grumer, suddenly appears and steals the jewel of the Trickle royal family from Nicola. Furthermore, Minongan, one of the Uchu Five Jesters, also appears and steals the holy sword OhgerCalibur ZERO, which had been prepared for the ceremony of the alliance. The King-Ohgers rush to the scene and fight alongside the Boonboomgers, but the warriors are separated by the mysterious power of Manhole Grumer. Scattered across the stars, the King-Ohgers begin their own actions to escape their predicament. Soon, a dangerous heartbeat begins to echo from the depths of the earth. When a powerful malevolence is about to awaken, will the two great Super Sentai be able to come together again and fight together? The battle for the three stars begins now...!
