Rokushin Gattai God Mars (Six God Combiner God Mars) is the story of Mars, a Gishin child sent to Earth by the evil emperor Zule. After crashing on Earth, Mars was taken in by a Japanese family, named Takeru, and grew up in happiness as an Earthling, unaware of his background. At age 17, he joins space defense force Cosmo Crasher, and serves as a pilot in the team. And then the visions come. Zule starts sending psychic messages to Takeru, calling him Mars, and telling him that he needs to activate the bomb he placed on Earth to destroy the planet getting in his way. Takeru refuses, and Zule begins to send assassins after him. It turns out that Takeru\'s father built the bomb and as a way to get revenge against Zule, who forced him to do so, built it into a robot which can be used to fight against the Gishin army. In addition, he sent five other robots (without bombs) in stealth to Earth to aid and combine into a super robot. Oh, and there\'s just one catch - If Takeru dies, the bomb goes off.