Emi Kaido's life changes when a band of otherworldly heroes rescue her from killer robots.

Emi reluctantly uses her luxury abode to protect her motley crew of warrior heroes.

Having learned Damian's true identity Takeshi transforms into Polimar to thwart attacks.

Emi is dragged to a party the team is chaperoning and Jōji encounters the seductive Belle Lynn.

Suspicions grow when an elusive guest arrives at Emi's house looking for help.

The eccentric Damian makes an unexpected return, reminding Ken and Emi their futures are in peril.

With surprise message in hand Emi heads to a familiar place to meet a wholly unfamiliar figure. Soon a voice from a parallel universe breaks the silence to reveal a disturbing personal story opening the floodgates of an exchange of personal truths.

Emi returns to life as a normal teenager, but Takeshi and Tetsuya aren't convinced.

Emi and Kaan are pulled into an alternate dimension, only to find Ken and the others in a brawl.

The team has vanished leaving Emi with a case of amnesia and another mysterious text from her father. Now atop a Shibuya high-rise an epic standoff with her father is about to unfold and Emi isn't holding back.

As the Case-wielding Kaido continues to eradicate worlds, the team takes collective aim.

The city of Shibuya again pulses with life as Emi pushes onward with her new heroic heart.

タツノコプロが誇る4大ヒーローが集結した劇場版。戦いの末に自分たちの世界を取り戻し、それぞれが生きるべき場所へと戻ったガッチャマン=健ら4人のヒーローたち。しかし、彼らはある目的のため、笑と共に再び時空を超えてひとつの世界へと降り立つ。