Wagon Train - Season 8 Episode 10 The Richard Bloodgood Story
Overview: A blind man called Sangre has joined the wagon train along with his guide. He is actually Coop's boyhood blood brother Richard Bloodgood, and he openly states his plan to kill Coop. Coop gets very hostile and refuses to discuss it whenever Charlie or Barnaby ask the reason Richard wants to kill him, but they know it has to do with the death of a beautiful woman long ago.