Annie is called on to help find three men involved in a train robbery. The manager's son tells his father that he's taking over, believing his father is no longer capable of his job.

An old school friend of Annie's breaks out of jail with two other inmates to go search for the treasure at the mission.

With an outlaw at large and the Sheriff searching for him, trouble arrives in the form of a fake sheriff, a drunk, and a senseless murder.

While awaiting word from the mine to see if they found gold, Annie discovers a beloved stagecoach is now being driven by a woman, the daughter of the owner who is now threatening to sell the stage and pocket the money.

The owner of the mine is bushwhacked, but lives long enough to ask Annie to send for his daughter. His killer still unknown, the daughter has a big decision to make on the running of the mine.

Annie and Lofty jail Dobie but he proclaims his innocence while they look for the rest of the gang. Dobie escapes but he and Tagg get kidnapped by the actual culprits, leading Annie to take desperate measures to rescue her brother.