With a bunch of other cowboys, Jack Raynor is traveling the range on a fence-repairing expedition. They stop to repair a broken section, and in the course of their labors, an old quarrel breaks out between Jack and another cowboy, "The Sullen One." During the fight, Banks, a foreigner in the country only a short time, approaches the group, and seeing the cowboy's fresh mounts, takes Jack's horse, leaves his own exhausted animal in its place, and resumes his journey at full speed. The boys are all so absorbed that no one notices the incident until they return to their horses. Then, catching sight of the fugitive in the distance all give chase, and the man is stopped with a lariat in a very effective manner. The foreigner begins to realize he is in serious trouble, for the crime of horse-stealing is one of the worst offenses a man can be guilty of in that section. The boys find the sheriff is away, and the spirit of the wilder west still being extant, the cry of, "Lynch the horse thief" goes up. Banks is accordingly led away volubly protesting he did not take the horse with the intention of stealing it. Fortunately for him, the sheriff's daughter Sally learns of the boys' intentions and arrives on the spot in time to prevent the lynching. She questions the frightened man, who explains that he was in urgent need of a doctor and that was why he had taken such desperate measures. She also learns the reason of his haste, and convincing the boys a doctor is needed at once, all dash off to town. The physician is escorted to Banks' cabin just in time to welcome an addition to the Banks family. In partial atonement for their error and hasty action, the boys take up a collection among themselves and present it to the happy father.