The story revolves around one-eyed marshal Clay "Black Patch" Morgan (Montgomery). The marshal is delighted to find out that his old buddy Hank Danner (Leo Gordon) is riding into town, but less than thrilled to learn that Danner is now a wanted outlaw. Reluctantly throwing his friend into jail, Morgan sets off a chain reaction of terror, beginning with a jailbreak engineered by crooked saloonkeeper Frenchy De Vere (a particularly vicious performance by Sebastian Cabot) and culminating in a showdown between the marshal and Danner's young protégé Flytrap (Tom Pittman).