Uncle Claude comes to the Ardmore Beach Hotel to see Tommy and his wife. At the hotel, with his two granddaughters Ruth and Sally, Uncle Claude meets a wise talking employee named Letty, which causes him to leave the hotel. When he finds Tommy, he mistakes Grace for his wife and likes her and the way she keeps a clean house. To get a big check from Uncle Claude and to see how life is with the other, the two couples switch spouses for a week.
Delmar Spavinaw, an educated "half-breed," loves Evelyn Huntington, daughter of a racist judge. Evelyn's other suitor is Ross Kennion, a widower with one child, and owner of a vast tract of land which Spavinaw insists belongs to his Indian mother. Spavinaw seeks revenge when Judge Huntington decides to evict the squaw. Assisted by Juan Del Rey, a cattle rustler, Spavinaw steals the title to the land, wounds Kennion, stages a raid on the judge's cattle, and attempts to kidnap Kennion's son and Evelyn. The arrival of the sheriff forces him into flight across the border without his hostages. En route he meets Doll Pardeau, a school friend of Evelyn's, and together they ride for the Mexican border. Caught between a cattle stampede and a sheriff's posse, the couple catch a passing freight train, leaving calamity behind as the train slowly passes.
