In the deep of space, a starship is hijacked. The vice president of a powerful corporation is onboard, alongside a deadly monster, Zeiram. Young bounty hunter Iria is tasked with executing a rescue mission before the authorities catch on.
Narrowly avoiding death, Iria must find her way back home on a strange planet. When Zeiram is discovered to have escaped the blast, Iria must team with sidekick Kei to stop a reign of evil.