Territorial marshals Virgil Cole and Everett Hitch figured things had finally settled down in Appaloosa when Boston Bill Black's murder charge was dropped. But all that changed when Augustus Noble Driggs was transferred to a stateside penitentiary just across the border from Mexico. Square-jawed, handsome, and built like a muscled thoroughbred stallion, Driggs manages to intimidate everyone inside the prison walls, including the upstart young warden....