The Third Doctor and Jo Grant visit the remote Stangmoor Prison to examine a new method of “curing” criminality, whereby the negative impulses are removed from the brain using the Keller Machine to enact the Keller Process.
Professor Kettering, who is managing the delivery of the Process at the behest of the absent Emil Keller, reconditions a number of inmates including Barnham, a hardened criminal who is reverted to a more innocent and childlike state by the Process. The Doctor’s suspicions about the Keller Machine are heightened following a string of deaths, including that of Kettering himself, which seem to occur when the Machine is operated. Each death seems to be triggered by visions of personal phobias – and the Doctor is seemingly threatened by an inferno when he gets too close to it.
Special Features
- Now and then
- Behind the Scenes: Television Centre
- Radio Times Listings (DVD-ROM)
- 1971 Kellogg?s Sugar Smacks promotion (DVD-ROM)
- Commentary with actors Katy Manning (Jo Grant), Pik-Sen Lim (Chin Lee) and Fernanda Marlowe (Corporal Bell), director Timothy Combe, producer Barry Letts, script editor Terrance Dicks and stunt arranger Derek Ware. Moderated by Toby Hadoke
- The Military Mind: A look at the making of the story. Featuring actors Nicholas Courtney, Pik-Sen Lim and Fernanda Marlow, director Timothy Combe, producer Barry Letts and script editor Terrance Dicks
- Programme Subtitles
- Photo Gallery
- Production information Subtitles
- Digitally Remastered picture and sound quality