Tom Allen, a U.S. Marshal, goes undercover to investigate a train robbery and a suspected gang led by Jim Rivers. He befriends Lucky Webster, who is secretly working for the gang, and discovers that respected citizen Jeff Gordon is actually involved with the outlaws. As Tom gathers evidence, he is ambushed by the gang after Lucky's sister Julie accidentally reveals his true identity.
Western Mail
Two undercover agents, Allen and Mendoza, infiltrate a group of mail train robbers led by Rivers to gather evidence and bring them to justice.
