A man, released after a jail term for a crime he did not commit, raises a gang to go after the man who framed him.
Renowned gunman Richard Martin is traveling on a train, held up by Billy Kane, a former student of Martin's. Kane spares Martin, but only after shooting his hands. Years later, Martin meets an escaped convict, wrongly convicted for the train robbery. Martin trains his new student and both men seek out Billy Kane.
Chamaco finds himself on the wrong end of a firing squad after tracking an ex-Confederate to interrogate him about General Beauregard's missing gold. He's saved by a stranger who calls himself Stuart Byrnes. Stuart claims to know the location of Beauregard's strongbox, and so Chamaco takes him to Blake's camp. After a sort of initiation by the gang, Stuart leads Blake's men back across the border to Durango to retrieve the gold.
In 1866, prospector Tom Corbett returns to his hometown of Laramie, Texas, now under the brutal control of gangster Jason Scott and his violent son, Junior. With his brother Jeff, a struggling drunk cared for by their maid Mercedes, Tom seeks to overthrow the Scotts' tyrannical rule and restore peace to the town.