Doctor Who: Inferno (1970) 

UNIT is providing security cover at an experimental drilling project at Eastchester, designed to penetrate the Earth's crust and release a previously untapped source of energy. Soon, however, the drill head starts to leak an oily green liquid that transforms those who touch it into vicious primeval creatures with a craving for heat. The Doctor is accidentally transported "sideways in time" by the partially repaired TARDIS control console into a parallel universe where the drilling project is at a more advanced stage. Thwarted by his friends' ruthless alter egos, he works to save both universes.

Full Crew Full Crew

DETAILS

Jon Pertwee The Doctor

Caroline John Liz Shaw / Section Leader Elizabeth Shaw

Nicholas Courtney Brigadier Lethbridge-Stewart / Brigade Leader Lethbridge-Stewart

John Levene Sergeant Benton / Platoon Under Leader Benton

Olaf Pooley Professor Stahlman / Director Stahlman