Lars Holstrum (Peter Whitney) is a middle-aged and wealthy rancher friend of Judge Garth's who is about to marry a 20 year old girl. Lars injures his back and Trampas is given the job of traveling to Laramie to pick up the girl, Katia Swenson (Katherine Crawford). On the return trip the two have a series of misadventures revolving around encounters with local Indians, a group of cowpokes, and a mysterious man who has been trailing them from Laramie.