Bonanza

Season 6, Episode 23

Episode Title: Once a Doctor

Air Date: 1965-02-28

Overview:

Hoss' latest acquaintance, an Englishman named Professor Poppy, is actually Percival Alexander Mundy, M.D., who has given up the practice of medicine. However, when Hoss is shot in the back, only Mundy's skill can save his life.