AllMovie

A futuristic convict on a toxic prison planet seeks revenge for a series of heinous crimes in this sci-fi action thriller. Somewhere in deep space, the guards and prisoners on a penitentiary planet come under attack by a horde of mutants created by a toxic spill. All that stands between the desperate humans and certain death is a minuscule force field, and as the mysterious newcomer prepares to carry out his mission, the stage is set for all-out war.