A Mexican leaves his wife and family with hunger staring them in the face to get a job on the "Rocking Chair" Ranch, so that he can supply them with life's necessities. Mexicans are not popular at the ranch and the new man is bullied and persecuted until he tries to kill his foreman, whereupon he is kicked out. He plans to burn the ranch buildings out of revenge. While the crew is away riding herd, the Mexican steals back to the ranch and arranges for the conflagration. The foreman's baby daughter is bitten by a rattlesnake and the frantic mother forgets the hostility of the Mexican in her anxiety. His innate manhood causes the Mexican to forget his revenge and ride for the doctor on the fastest horse on the ranch. Seeing him ride madly past, the foreman shoots him for a horse thief. The Mexican brings the doctor, the baby is saved, his courage is rewarded and his family is saved from starvation.