Professor Emil Keller has created a machine that can pacify even the most dangerous of criminals. But when the Doctor and Jo arrive at Stangmoor Prison for a demonstration, things start to go horribly wrong - especially when they discover that the Doctor's old enemy the Master is responsible for the machine.
Release Date : Mar 06, 1971
Genres : Science Fiction, Drama, Adventure
Production Company : BBC
Production Countries : United Kingdom
Original Language : English
Casts : Jon Pertwee, Katy Manning, Nicholas Courtney, Richard Franklin, John Levene, Roger Delgado, Pik-Sen Lim, Raymond Westwell, Michael Sheard, Simon Lack, Fernanda Marlowe
Director :
Status : Released
Budget : 0
Revenue : 0
