S1·E20 The Gray Dude

Chuck Jones is the only boy in town that doesn't have a steed. His father, Blowfly promises him a horse with a black horse named, Blackie. The horse belongs to Gene, who is working on Blackie. Gene hears about the death of an old prospector, who was found with horseshoe prints on him. The townspeople point finger at Blackie, since the soeprints match his horseshoes. Antoher prospector is found dead with horseshoe prints on him. Blackie is then sentenced to death. Gene goes to find the real killer, and Chuck lets Blackie escape. Gene discovers that Blackie was used as a decoy, and the horse is off the hook, and Chuck now owns his own horse.