The most dangerous criminals in the universe escape from the Off-World Penitentiary and stow away to the quiet Moonbase Waste Disposal Plant. Hidden beneath the lunar surface lies an arsenal of nuclear warheads- the inmates' passport home to earth. Moonbase Commander John Russell launches a desperate fight to save his crew from a force capable of laying waste to an entire planet.

Set in a post-nuclear-holocaust future, this sci-fi western takes place in the frontier city of New Hope, the only place around with a working oil refinery. Ever since a megalomaniac general and his followers took over the place, life has been miserable. Then a stranger, a man-of-few-words, comes to town. A quick-drawing gunslinger, he first joins the conquerors. As time passes, however, it rapidly becomes apparent that he really sides with the townsfolk, and when the time is right, he leads them into a violent uprising.