Episode Six
Series Episode Number: 298World Premiere: Sat 15 May 1971 - 6:12pm BST [BBC One] (United Kingdom)
First Broadcast: Mon 8 Dec 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 25 minutes 22 seconds
8.70 Million (UK)
Chart Position: 23 () (UK)
Recorded on Sat 03 Apr 1971 in TC3
Archive State: RSC conver
In the underground city, the Doctor and the Master confront the guardian of the Doomsday Weapon. The miners make their last move to force the colonists to leave the planet.
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