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!!
井内 悠陽
as Taiya Hando / Boon Red
葉山侑樹
as Ishiro Meita / Boon Blue
鈴木美羽
as Mira Shifuto / Boon Pink
Ryu Saito
as Jyo Akuse / Boon Black
Satoru Soma
as Genba Bureki / Boon Orange
Yu Miyazawa
as Sakito Homura / Boon Violet
松本梨香
as Boondorio Boonderas (voice)
花江夏樹
as Byun Diesel (voice)
ハシヤスメ・アツコ
as Shirabe Saibu
諏訪部順一
as Decotrade (voice)
水樹奈々
as Itasha (voice)
諸星すみれ
as Yaiyai Yarucar (voice)
