To investigate a gold-shipping scam, a postal inspector goes undercover and tries to infiltrate the gang he believes is responsible.

Charles Starrett returns as the Durango Kid in Columbia's Rough, Tough, West. For most of the film, however, Starrett is known as "Steve Holden," a former Texas Ranger who comes to a wide-open mining town to visit an old friend (Jack -- later Jock -- Mahoney). Alas, said friend has turned bad, and is busy arranging a major land grab when Steve arrives on the scene. With deep regret, our hero dons his Durango disguise to thwart his ex-friend's criminal activities.

Flame of the West has always attracted more attention than most of Johnny Mack Brown's Monogram westerns, if for no other reason than the offbeat casting of Douglass Dumbrille. Usually seen in villainous roles, Dumbrille herein offers a sincere, effective performance as a scrupulously honest US marshal named Nightlander. When he takes on a gang of crooked gamblers, Nightlander is shot down in cold blood, compelling frontier doctor John Poole (Johnny Mack Brown) to put his Hippocratic oath on the back burner and strap on the shootin' irons.