Getter Robo Armageddon: Ascension

Go Nagai's classic 1970s GETTER ROBO series was one of the original "combining robot" animes, featuring spaceships that transformed into human-like robots in an almost unbelievable manner. This series is an update of the original GETTER ROBO and GETTER ROBO G series, which found the Earth being saved from destruction by alien invaders by the Getter Robos, which were created specifically for this purpose by a brilliant scientist. However, after the Getter Robos won the war for the Earth, fear of the technology being used for sinister purposes drove humanity to destroy the robots as well as their creator. Now, someone has revived the technology, causing the Getter Robos' creator to come back from the grave in order to counteract this new destructive force.