Bob Graham gains the consent of Grace Allen to marry before he leaves for the fall round-up. Bob takes with him a locket given him by Grace as a token of remembrance. Jed Brown, who has also loved Grace, goes with the punchers across the range and when opportunity offers steals the locket and forges a note which he returns and gives to Grace, making her believe that Bob has jilted her. Womanlike, she turns her affections to Jed and they are married. Bob learns of the trick and makes a solemn vow someday to get even. The opportunity presents itself when Jed, a few months later, is pursued by a crowd of cattlemen, who threaten to lynch him for beating his wife. Jed goes to the sheriff, who, to his dismay, proves to be Bob, and begs for protection. Bob is about to turn the man over to the mob but he is reminded of his duty when Jed thrusts a Bible in front of him and begs him to remember his oath of office. Bob gives the man protection, but going to the home of his former sweetheart finds that the mistreatment she has received at Jed's hands has resulted in her death.