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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 : March 06, 1971
Budget : $0.00
Revenue : $0.00
Duration : 150 minutes
Rating : 7.00
The Doctor
Jo Grant
Brigadier Lethbridge-Stewart
Captain Mike Yates
Sergeant Benton
The Master
Captain Chin Lee
Prison Governor
Dr. Roland Summers
Professor Kettering
Corporal Bell
George Patrick Barnham
Arthur Linwood
Chief Prison Officer Powers
Senior Prison Officer Green
Prison Officer
Prison Officer
Prison Officer
Prison Officer
Mailer
Vosper
Fu Peng
Senator Alcott
Charlie
Major Cosworth
Fuller
Main Gates Prisoner
Prisoner (uncredited)
May 25, 1960
March 04, 2002
April 03, 1998
August 25, 1989
July 16, 1986
February 09, 2007
November 15, 2006
June 16, 2006
January 17, 2004
November 02, 1990
February 16, 1962
May 31, 2004
November 22, 1989
November 26, 1986
May 25, 1990
November 22, 1996