During the illness of her father, Toni Carter, Milly takes his place as station agent. She is loved by both Dave Snowden, a freight engineer, and Bill Mailey. an overland express messenger, who distrusts and dislikes Dave. The former, seeing that both the girl and her father favor his rival, determines to disgrace the station agent and his daughter. A package containing $10,000 is brought by Bill to be forwarded to Pocoima. Milly signs for it, but it cannot be sent on till next morning. Bill and a pal of his break into the station and tie up Milly and her father, whom they force to tell the combination of the safe. The girl, however, is able to phone the sheriff, who arrives in time to take the crooks into custody. All this time the money has been hidden under the cushion of the chair in which Milly is tied.