Part One
Series Episode Number: 406World Premiere: Sat 27 Sep 1975 - 5:45pm BST [BBC One] (United Kingdom)
First Broadcast: Mon 31 Mar 1980 - 5:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 2 seconds
10.40 Million (UK)
Appreciation Index: 56 (UK)Chart Position: 19 () (UK)
Recorded on Mon 30 Jun 1975 in Television Centre 6
The TARDIS takes the Doctor and Sarah to the planet Zeta Minor on the edge of the universe. An unseen menace has wiped out a Morestran expedition and haunts the alien jungle...
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