Sergeant Preston reported to headquarters for orders from Inspector Conrad. Cub West and his gang of killers were heading north to the Bellary Flats region, and he wants Sergeant Preston to go to Bellary Flats to warn Corporal Buckland that the killers are in his territory, and help him to get them. When he gets there however, the Corporal has already been murdered, shot from ambush by Cub West. They know that Sergeant Preston is on their trail, and they're determined to stop him with a bullet...