Before changing his name to Richard Powers, cowboy hero Tom Keene spent the waning days of his stardom at Monogram, churning out westerns like Riding the Sunset Trail. When ingenue Betty Dawson (Betty Miles) and her kid sister Sugar (Sugar Dawn) are cheated out of their cattle ranch, Tom Sterling (Keene) and his sidekick Mendoza (Frank Yaconelli) vow to get the ranch back for the girls. This requires Sterling to cross six-guns with Pecos Dean (Gene Alcase), a former friend who'd turned bad. The climax is a shootout between our heroes and the minions of chief heavy Jay Lynch (Kenne Duncan). Formerly a bit too overenthusiastic in his screen appearances, Tom Keene turns in a restrained, well-modulated peformance in Riding the Sunset Trail.