Episode Three
Series Episode Number: 285World Premiere: Sat 13 Feb 1971 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Tue 11 Nov 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 30 seconds
7.50 Million (UK)
Chart Position: 70 () (UK)
Recorded on Sat 05 Dec 1970 in Television Centre 8
Archive State: 16mm t/r
The Master is behind the Keller Machine and uses it to recruit the rioting inmates at Stangmoor Prison. He plans to capture a missile and fire it at the World Peace Conference.
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