

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.

The Doctor

Jo Grant

Brigadier Lethbridge-Stewart

Captain Mike Yates

Sergeant Benton

The Master

Captain Chin Lee
Prison Governor

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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.

Movie / 1970

Movie / 1984

Movie / 1898

Movie / 2013

Movie / 2014

Movie / 2009

Movie / 2001

Movie / 1965

Movie / 1986

Movie / 2024

Movie / 2024

Movie / 1989

Movie / 2017

Movie / 2011

Movie / 1993

Movie / 2016

Movie / 1993

Movie / 1996

Movie / 1952

Movie / 2008