Above average fare from the Lone Star crew of worthies-- Hayes, Canutt, Dwire, and of course Wayne. Lindsley Parsons did several scripts for Wayne and Lone Star, but this one's arguably his best. Wayne's an undercover agent on the trail of an outlaw gang whose latest robbery ends in a massacre of saloon patrons and staff. The opening is a grabber as the camera surveys the corpse strewn floor, while a player piano bangs away in the background, eyes peer from holes in a painting, and a secret panel opens. The outlaw gang has a neat hideout in a hollow behind a waterfall. Their digs even includes, of all things, its own jail where the leading lady ends up! Some good hard riding, including (alas!) a trip-wire spill that looks dramatic, but I wonder if the horse survived. Canutt comes up with usual spectacular stunt as Wayne takes a fall from a ladder high up a rock face. Can't help but notice that Alberta Vaughn looks much too young to stack up as an adult leading lady, but manages okay in the acting department. The movie's unusual for rare use of a miniature as a special effect. It's pretty well done and money well spent since the ending makes unexpectedly good use of it. All in all, it's good clean fun, as they used to say.