God Mars Complete Series SDBD contains the entire 64-episode series in standard definition, as well as a movie digest version and an OVA side story, God Mars: Untold Legend.

In the future year of 1999, humanity has take it's first steps away from Earth and towards the stars. But mankind's incursion into space draws the attention of a cruel alien warlord, Zul. Zul seeds our planet with a secret doomsday weapon--a weapon carried by the robot Gaia, which can be triggered by the infant Mars! But instead of fulfilling his destructive mission, the alien Mars assimilates into human society. Now, Mars lives as a young man names Takeru Myojin. With his allies, the Crasher Squad, Takeru uses the power of Gaia to summon five robot heroes-- Sphinx, Titan, Ra, Shin, and Uranus-- to combine with Gaia and defend the Earth. But there's one catch-- Takeru and his God Mars robot may be mighty, but if he's killed by the forces of Zul (Led by none other than his own brother, Marg), Gaia's bomb will activate, destroying the Earth!

God Mars is loosely based on the Mars comic series created by celebrated artist Mitsuteru Yokoyama (Tetsujin28, Giant Robo). The show originally ran in 1981 and 1982 on Nippon TV. Initially planned as a 26-episode series, strong toy sales and an unexpectedly large and vocal female following made God Mars a sustained and long-running hit.