Bob Steele once again goes in search for the outlaw who murdered his father in this average Western released by Republic Pictures. The killer, Jim Hatfield (Warner Richmond), is holed up in a South-of-the-Border cantina from whence he runs a series of cattle rustlings and assorted other crimes. The Hatfield gang kidnaps Don (David Sharpe), the young brother of waitress Jean Williams (Lorraine Hayes), and forces him to sign over some traveler's checks to Hatfield. Allowing himself to be captured by the gang, newly deputized Dave Austin (Steele) is sentenced to die at sundown, but by using trickery, the youngster manages to turn the outlaws against each other. Doomed at Sundown was filmed at Newhall and Chatsworth, CA. Leading lady Lorraine Hayes, aka Lorraine Randall, was the sister of popular screen actress Bernadene Hayes.