The Mask of Lopez (1924)

Attracted to ranch owner Doris Hampton, Jack O'Neil impersonates convict "Angel Face" Harry, who is to be released from prison (a reform measure) to work on Doris' ranch. Jack discovers that Doris' cattle are being stolen by her foreman, Steve Gore, finds Gore's hiding place, and keeps him at bay until Doris rides up at the critical moment with help.