The Lawless Legion (1929)

Sheriff Keiver's ( Howard Truesdell ) daughter, Mary ( Nora Lane ), promises to marry Cal Stanley ( Ken Maynard ) if he will drive a large herd of cattle from drought-stricken East Texas across the bad lands controlled by Ramirez ( Paul Hurst ), a rustling renegade, to Grass Valley. Cal is drugged on the way, and Ramírez steals the herd. Cal is held responsible and goes after the herd himself, posing as a cattle buyer. He gets the cattle back and rounds up the rustlers, winning Mary's love for himself.