S1·E3 Yellow Hair

A mortally wounded soldier stumbles into Johnny's camp. Before he dies, he says only one thing: "Fort Concho." Johnny rides to the fort and discovers it empty of soldiers. The sole survivor is a coward who hid during the fighting and survived--knowing Indians do not harm the mentally infirm--by pretending to be crazy. Before Johnny can leave, he's captured by Kiowas who plan to torture him to death.