The King-Ohgers and Donbrothers are now in Hakabaka, the land of the dead. They have all died for various reasons. Without knowing who the other is, they begin a showdown. Is there an end to this battle? No. Why did such a battle begin in the first place? Eventually, they arrive at one profound truth.

Ohsama Sentai King-Ohger vs. Donbrothers

Nicola, who has ascended to the throne as the queen of Planet Trickle, has decided to form an alliance with Planet Chikyu. 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 family from Nicola! Furthermore, Minongan, one of Dagded's five jesters appears and steals the Ohgercalibur ZERO, which was prepared for the alliance ceremony! The Ohsama Sentai King-Ohger rushes to the scene and fights alongside the Boonboomger, but the warriors are separated by Manhole Grumer's mysterious power. Taiya and the others were scattered across the stars, each take action to escape from this dire situation. Soon, a dangerous heartbeat begins to resonate from deep underground. As a powerful evil awakens, will the two great Super Sentai be able to come together again fight together?! The battle for the three planets begins now!!

Bakuage Sentai Boonboomger VS. King-Ohger

The story begins when the Lupinrangers, Kairi, Touma, and Umika, are kidnapped by someone mysterious. The Patrangers are then tasked with an Abduction Case to find the missing thieves, where they run into the Kyuranger team as they pass through space. Just who exactly kidnapped them? And why did the 12 Kyurangers return to space?