Part Four
Series Episode Number: 685World Premiere: Wed 27 Sep 1989 - 7:34pm BST [BBC One] (United Kingdom)
First Broadcast: Tue 7 Jul 2015 - 10:30pm EDT [Retro TV]
Running Time: 24 minutes 14 seconds
4.00 Million (UK)
Appreciation Index: 65 (UK)Chart Position: 89 () (UK)
Recorded on Thu 01 Jun 1989 in Television Centre 3
The Brigadier slays the Destroyer while Morgaine takes control of UNIT's nuclear warhead and prepares to start a countdown that will destroy Earth forever.
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