Resources on Mars have been worn dangerously thin, and the domed cities there have resorted to gladiator contests to determine who receives the most rations. Layla Ashley is one fighter representing her city. She, along with Speedy, a doll breeder, runs across Nei, a mechanical doll with some very odd characteristics. Together, they wander and fight their way across the planet to take revenge against a shadowy figure straight out of Layla's past.