Yuma Prison

Roy Blood had been locked in Yuma Territorial Prison for the attempted murder of U.S. Deputy Marshal Harold Stampede. But the outlaw has managed to break out and take a dozen hardened convicts with him as they sweep a path of violence across Southern Arizona. The leader of the gang has sworn an oath to kill the deputy marshal for shooting dead his partner, Jimmy So-Fast. And Marshal One-Eyed Jack Black intends to do whatever he can to stop him and protect the citizens of Cochise County - all this, while an unsuspecting killer is on the loose in Peirce City during the lawmen's absence.