Pinto Canyon (1940)

Pete Childers, a notorious killer, is assigned as a deputy to Sheriff Bob Hall. Hardy Keller, wanted for murder, is hiding on a ranch own by Bob's sweetheart, Helen Jones and her brother Fred. Childers is working with Farley, a crooked cattle dealer. After Childers wantonly shoots down the surrendering Kellar, Bob beats him up and fires him. Bob knows that Fred is on familiar terms with the rustlers, but Helen won't believe him and they quarrel.