La Belle Carman, a young and beautiful Mexican girl, the ward of Jose Espanno, is about to inherit the fortune left to her by her father. Jose Espanno, knowing this, is anxious to have his son Pedro marry her. Pedro, urged on by his father, proposes to La Belle and is refused. Espanno, upon learning of her refusal to marry his son, tells her that she must either marry Pedro or enter the convent. La Belle answers that she will do neither. Espanno and Pedro, growing angry, force her into a carriage and start on their way to the convent. Jim Blake, an American cowboy, passes them on the road and notices that the girl is being held in the carriage against her will, suspects that the two Mexicans are up to some trick, and decides to follow them. Upon reaching the convent, La Belle is carried in by the two men. Jim, waiting until they have gone, knocks upon the door of the convent; a nun answering, Jim asks to see the young lady who was just carried in. The nun refusing to let Jim see her, he now feels positive that she is being held against her will. Learning from a peon working about the grounds the location of the room in which La Belle is looked, he waits until the night has fallen and then goes back to the convent. Throwing a pebble against the window of La Belle’s room, he attracts her attention and tells her that he has come to rescue her. Throwing his lariat up to the window, she catches it, ties it to the bed-post in her room, and slides down the rope into Jim’s arms. Taking her upon his horse, they ride back to La Belle’s home, where they arrive just in time to find Espanno and Pedro robbing the safe of all the valuable papers belonging to La Belle. Jim forces them at the point of a revolver to leave the house, saving La Belle’s fortune and winning her as his wife.