UFO Robo Grendizer tai Great Mazinger

Format: MOVIE
Episodes: 1
Episode Duration: 30 minutes
Status: finished
Start Date: 3-20-1976
End Date: 3-20-1976
Season: spring 1976
Average Score: 5.8
Mean Score: 6.1
Studios: Toei Animation
Producers: Dynamic Planning
Source
Genres: Mecha Sci-Fi

Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger is recovered.

When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace.

It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.

(Source: Anime News Network)