The hell called Yuma Prison can destroy the soul of any man. For two men facing life sentences--Harold Jackson, the only black man behind the walls, and Raymond San Carlos, an Apache half-breed--a pardon seems impossible.

But even in the worst place on Earth, there's hope. And for these two hard and hated inmates--first enemies, then allies by necessity--it comes in the form of a mad and violent contest . . . to track down and hunt Arizona's five most wanted outlaws.