Episode 6
Series Episode Number: 197World Premiere: Sat 9 Mar 1968 - 5:24pm BST [BBC One] (United Kingdom)
First Broadcast: Sun 15 Mar 2015 - 12:20am CDT [Iowa Public TV]
Running Time: 24 minutes 41 seconds
8.30 Million (UK)
Appreciation Index: 55 (UK)Chart Position: 36 () (UK)
Recorded on Sat 17 Feb 1968 in Lime Grove D
Archive State: Found (11-Oct-13)
The HQ is destroyed by the web and everyone is captured by Yetis. The traitor is revealed and all seems lost as the Doctor submits himself to the Great Intelligence's mind drain.
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