Rancher Tom Owens is forced to shoot his old friend, Jack Breen, when he flees from an attempted bank robbery and fires on Tom. Jack, who has fallen in with a gang of outlaws led by Henchey, then dies in the arms of his fiancée Doris, a former saloon girl who had encouraged Jack's involvement with the gang. Heartbroken, Doris accuses Tom of murdering his friend and vows revenge. Soon after, Jack's young brother Frankie arrives from Phoenix and is devastated when he learns of Jack's death. Without revealing the truth behind Jack's death, Tom takes charge of Frankie and, with the help of his friend Windy, teaches the boy about ranch life. When by chance Doris meets Frankie, she encourages him to visit her and tells him stories about Jack. Upset by Doris' interest in the boy, Tom insists that she stay away from him, but she threatens to tell Frankie about Jack's killing if he stops Frankie from seeing her. Ticket agent Tupper, the "silent" leader of Henchey's gang, then orders Henchey to kill Tom in preparation for a stagecoach robbery. Although Henchey fails in his attempt, Tom, who has been threatened again by Doris, decides to send Frankie back to Phoenix and buys a ticket from Tupper for the same stagecoach that Tupper is to rob. Just before the hold-up is to take place, Doris learns of Tupper's plan to murder everyone on the coach, and rushes to tell Tom. While Doris notifies the sheriff, Tom and Windy intercept the outlaws and guide the stagecoach to a town on the Mexican border, where a fierce shootout with the gang ensues. After Doris is wounded while protecting Frankie and Tom, Tom, who has defeated the other gang members, throws Tupper out of a window. Doris and Tom then reconcile with each other and agree to share responsibility for Frankie.