Hearing his brother the Express Clerk is in trouble, Bob Williams rides to the Express Office only to find the safe open, his brother and the money missing, and himself accused of the robbery. To clear himself he trails and finds the outlaws engaging them in a fight. But during the melee, the gang leader double-crosses his men and sneaks away with the money and Bob now has to catch him.
Don Cesar De Vega crosses swords with a vicious member of the Queen's Guard, and steals the affection of a young heiress. When the officer frames the young upstart for murder, Don Cesar fakes his own death and retreats to the crumbling ruins of the family castle he plots his vengeance.
Tex Sherwood has just come into possession of a valuable piece of land that will be irrigated by a new dam. Banker Holman knowing the deed must be registered the next day, offers a $50,000 reward for Tex's capture.
A young girl travels west to live with her uncle during the California Gold Rush only to find that he has been killed by Indians and his identity assumed by an outlaw.