Broncho Billy's Word of Honor(1915)

Broncho Billy and his pals hold up a stagecoach. In rifling the mail bag, Broncho discovers a letter from his mother in which she begs him to come back home, as she is dying. Before he can comply, he and his band are captured. He is placed in charge of a young man, who hopes to get enough money from the reward for the capture of the bandits to marry his sweetheart.