Doctor Who: Season 21, Episode 20
The Caves of Androzani: Part Four (16 Mar. 1984)
Chellak and his men attack Jek's base. The Dr crash lands the ship, and must escape from his captors, find the antidote to Spectrox poisoning and save Peri. He does so, but at the cost of his own life.
Writer:Robert Holmes (by)