 In the future an extraterrestrial race called the Inbit invades Earth. Although human weapon technology at this point is superior to theirs, the Inbit take over the planet through force of numbers. A counter-attack is launched from the human Mars Base. Among the attack force is Stick Bernard and his girlfriend, Marlene. In the failed attempt to re-take the planet, Marlene is killed. After landing on the unfamiliar world, Stick opens the holographic locket given to him by Marlene to see her acceptance of his proposal of marriage. The first rainfall is a new experience for this Martian-born soldier. He decides his only option is to launch a ground-based attack on the Inbit. Making his way up from South America, he collects a group of guerilla fighters to join him in liberating the planet. Among them are Ray, a young man with a passion for motorcycles, Houquet Eroze, a young woman formerly in a gang, Mint Rubble, a young teen with a knack for getting into trouble, Yellow Belmont, a male soldier posing as a female singer, and Jim Austin, a mechanical engineer. Getting to the Inbit headquarters, Reflex Point, is no easy task, especially with their mechanized military hardware.