Wild Horse Valley: Bob Evans' Arabian stallion is stolen and Bob, with his friend Shag Williams starts on the trail that takes them to the horse ranch owned by Kimball and his daughter Ann, where the stallion is running wild. Baker, the ranch's crooked foreman, is utilizing the stallion as a decoy and, with his henchmen, Raymer and Winton, corrals the mares that follow the stallion in a hidden corral, intending to sell them across the state line.