On a quest to discover his true roots on Earth, Orgun flees from his alien kind using his formidable abilities and high-tech weapons. Along with a young partner named Tomoru, they collaborate to safeguard the planet against the disastrous designs of the Evoluders. This race strives to obliterate entire societies, but with Orgun and Tomoru's defense measures in place, they remain a force to be reckoned with.