Slim Sherman, appointed special detective by the Cattleman's Association, to investigate a spate of rustlers stealing cattle with Sherman Ranch being one of the most recent victims. After one of the rustlers takes a shot at him but misses he heads to Edgerton for help but the Sheriff is unable for a couple of days. He finds himself on the trail of Jean Lavelle and her longtime helper Gimp who have been stealing cattle from the larger ranches as payback. Another rustler Ralph who joined them is responsible for the theft of the Sherman Ranch stock and putting a determined Slim on their trail. In a shootout with Jean, Slim is wounded but captures her anyway. Slim risks his life, determined to take Jean to Cheyenne to stand trial and minimize the risk of her being lynched back in Edgerton, all the while being trailed by Gimp and Ralph plus the sheriff of Edgerton along with his deputy. With his bullet wound festering, it is questionable whether he and Jean will make it to Cheyenne alive.