Episode 7
Series Episode Number: 278World Premiere: Sat 20 Jun 1970 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Thu 6 Nov 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 33 seconds
5.50 Million (UK)
Appreciation Index: 60 (UK)Chart Position: 79 () (UK)
Recorded on Fri 29 May 1970 in TC3 / TC6
Archive State: RSC conver
The Doctor has escaped the doomed, parallel Earth and has returned to his own world where he attempts to put a halt to the drilling project.
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