Two con artists, Samejima (Yuki Tamaki) and Oshikiri (Osamu Soma), have secured a promise from Harue (Sanae Kaneko), the wife of a wealthy family, to buy her money. However, when they visit Harue, they find that a wake is being held. Harue Taki's property will be inherited by the last person remaining at the wake. When Tsuji (Yoshinori Ito), the executor's lawyer, read out the will, a deceptive game of deceit began among the four, including the grandchild, Sahi (Miru Nagase)!

The Boonboomger collaborates with popular YouTuber HIKAKIN on a shoot at a racing circuit that Taiya purchased. But when Princess Nicola Keydoor of planet Trickle who escaped from her home planet to Earth suddenly appeared, the Boonboomgers are now involved in a major incident that shakes the peace of planet Earth! This is Boonboomger's biggest mission yet!

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!!

Before Sakito and Byun Diesel return to Earth as seen in Bakuage Sentai Boonboomger's 16th episode, "Purple Settler", we witness this universe-spanning tale of the Settler duo, Sakito Homura and Byun Diesel, before their return to Earth after over a decade of absence.

The Bakuage Sentai Boonboomger Final Live Tour 2025 is a live show that was performed across Japan from March to May of 2025, acting as a final farewell for the cast. It comprises two parts: a scripted show part, and a talk show with the cast. The Gozyugers also appear in it.

A page for a new story is born, connecting kings and commoner.