Episode 4
Series Episode Number: 268World Premiere: Sat 11 Apr 1970 - 5:44pm BST [BBC One] (United Kingdom)
First Broadcast: Thu 16 Oct 1975 - 6:30pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 37 seconds
9.30 Million (UK)
Appreciation Index: 58 (UK)Chart Position: 46 () (UK)
Recorded on Fri 06 Mar 1970 in Television Centre 3
Archive State: PAL Restor
Liz has been captured by Reegan who is holding the three aliens captive. The Doctor suspects Quinlan's part in the conspiracy, but Quinlan is killed before he can reveal the truth.
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