Timeworn Joe Collins and his fellow inmates live under the heavy thumb of the sadistic, power-tripping guard Captain Munsey. Only Collins' dreams of escape keep him going, but how can he possibly bust out of Munsey's chains?
When Rocklin arrives in a western town he finds that the rancher who hired him as a foreman has been murdered. He is out to solve the murder and thwart the scheming to take the ranch from its rightful owner.