This is one of those perfectly acceptable 30s B-movies that does exactly what it sets out to do with a refreshing degree of professionalism by all involved, but which is completely forgotten within a couple of days of viewing. Roy Rogers' fans might feel a little cheated by the fact that he doesn't sing much but it's something of a bonus for us viewers who prefer cowboys of the non-singing variety. The writers must have been struggling to find reasons to have Rogers singing in this one, and one of the few occasions when he does a little crooning is courtesy of a guitar he discovers in a deserted house in which he has been imprisoned by dastardly Arizona Jack's ragtag band of desperadoes which is about as likely as finding an ice cube in a sauna when you think about it. Perhaps he leaves guitars dotted around the western countryside for just such an eventuality. Perhaps they're a source of energy like goblets of wine and stuff found in unlikely places in PC games. I don't know.
Anyway, the story is reasonably absorbing, although the bad guys might as well walk around with "Bad Guy" badges on their lapels. I mean, spotty tie, checked shirt and spivvy 'tache what a giveaway! And all of a sudden Eddie Acuff as Roy's semi-comic sidekick starts riding around on his horse hollering "Hi Ho, Dinah" at every opportunity as if he fancies himself as the next Lone Ranger.
It's all pretty good, undemanding fun and, clocking in at less than an hour, it's well worth giving it a try.