The evil organization Bowjack steals the legendary treasure Mahope from the Star Sea Sentai Kaiser Five and appears on Earth. And Kaiser Five, who appears running after Bowjack! Kaiser Five and Bowjack fight back and forth. At that time, the demon warrior Belegrina suddenly appears. Beregrina snatches Mahope from Bowjack with overwhelming strength. Kaiser Five gathers with Belegrina to claim that Mahope has been taken back, but Belegrina has no intention of giving Mahope to Kaiser Five and kicks Kaiser Red away. The Kaiser Five, who see Belegrina as a danger, fight to get Mahope back from Belegrina. ［BAD END］。