 The last of the "Frontier-era" films starring Roy Rogers. From this point forward through the last of the Roy Rogers  film at Republic, the time period was always the "modern west", or the mythical version of such. The exception to all of his remaining films not being set in a historical period was in "Heldorado" that contained a flashback segment. Here, Roy plays a dual role of the title character, Jesse James, and an identical look-alike gambler, Clint Burns. In order to blacken the name of Jesse James, who is aiding the homesteaders and farmers in their fight against a land-grabbing scheme by the agents of a railroad, Burns is hired to impersonate Jesse. The scheme is successful at first with all but Jesse s old friend, Sheriff "Gabby" Whittaker, and a newspaper reporter, Polly Morgan, who can distinguish the two men intuitively. Jesse ends that problem by taking out Burns, who had been impersonating him, and then he impersonates Burns in order to get to the root of the problem.