Joey and Packy find a dead wild mustang that has been shot. When they bring Pete and Jim back to the spot where they found the horse, the body is missing and there are no signs of how it disappeared.; A bank robber stages his apparent death in a burning car to cover his trail. He takes refuge in a line station on the Newton ranch, where he saves Fury by shooting a puma that had attacked him. Later the robber's gang comes to the cabin to get their share of the money.; Life of wild mustangs on the range.; History of the introduction of horses to North America.