Doomed to Another Routine Western
As the son of a sheriff, Dave Austin (Bob Steele) knows full well that his father's job came with certain dangerous. But when his father is killed Dave takes it upon himself to become the next sheriff and bring his father's killers to justice. His quest leads him to the hideout of Jim Hatfield (Warner Richmond) and his band of outlaws but it also leads to trouble when Dave's identity is discovered.
I bet that if I could be bothered I could find the identical storyline to "Doomed at Sundown" in at least a handful of other movie reviews with each featuring a different western star. So what that means is that "Doomed at Sundown" is an entirely typical western from back in the 30s with a good guy masquerading as an outlaw to catch a killer. It is also an entirely typical Bob Steele western with the same sort of shots which make you wonder whether they reused footage from his many other westerns and that means delivering the sort of acting which wouldn't look out of place in a silent movie.
What this all boils down to is that "Doomed at Sundown" is a stereotypical 1930s Bob Steel western which uses a storyline which was used in many a western. It isn't a bad western but it is a routine one which makes it predictable and forgettable as it offers up nothing out of the ordinary to make it stand out.