James Kelly and Tom Baldwin, two old pals, agree that their children, Larry and Helen, should marry. During the month before the marriage, Larry plans to have a fling and is smitten by a woman he meets on a train. Not realizing that the woman is Helen, he takes a job on the ranch next to hers, and she poses as a maid to sound out her fiancee's character. Tom exposes a group of cattle thieves but is accused of murder and makes a run for it. His horse catches up with a train, and when he jumps through the window, he finds himself facing his future wife.