In this B-western, Johnny Mack Brown is hired to stop a series of stagecoach robberies, which always occur when the driver sees a mysterious rider and hears a distinctive silver whistle. The investigation uncovers a complex web of deceit and revenge, led by the enigmatic Mystery Rider and a ruthless gang.
Whistling Hills
Johnny Mack Brown investigates a series of stagecoach robberies after the owner asks for his help, following a tip from Pete, the driver, who notices a suspicious individual.
