The Galloping Devil(1920)

Andy Green, a colorful cowboy, finds work at the Flying U cattle ranch, owned by Chip. Chip's foreman Dunk, who is Elsie Gray's guardian, attempts to force her to sign papers releasing him, but she refuses because he has stolen some of her money. Chip fires Dunk, who buys an adjoining sheep ranch, cutting off Chip's water supply and endangering his cattle.