Part One
Series Episode Number: 366World Premiere: Sat 23 Feb 1974 - 5:29pm GMT [BBC One] (United Kingdom)
First Broadcast: Sun 9 Oct 1983 - 11:00pm CDT [WTTW 11 Chicago]
Running Time: 24 minutes 32 seconds
8.10 Million (UK)
Appreciation Index: 61 (UK)Chart Position: 49 () (UK)
Recorded on Tue 04 Dec 1973 in TC3
Archive State: PAL 2 VT
The TARDIS suffers a power drain and is forced down on the planet Exxilon. Sarah is captured by the primitive inhabitants and the Doctor comes face to face with his oldest enemies.
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