Shortly after waking up on an unfamiliar street, stripped of clothes and memories, Retro and Pandy join forces and embark on a life of thrill-seeking and violence. Retro's wild behavior and Pandy's carefree nature make them the ideal partners in crime, causing mayhem wherever they go. When a careless error lands them in jail, Retro and Pandy are transferred to Dead Leaves—a high-security prison on the Moon. Upon arrival, they soon find that the other inmates are clones, all resulting from genetic mutation experiments. With nothing better to do, they break out of their cell and lead a prison riot with the other captives. Armed with a crew of mutants and a craving for chaos, the erratic duo begins their bizarre escape.