Episode 3
Series Episode Number: 133World Premiere: Sat 22 Oct 1966 - 5:54pm BST [BBC One] (United Kingdom)
Running Time: 23 minutes 31 seconds
7.60 Million (UK)
Appreciation Index: 48 (UK)Chart Position: 46 () (UK)
Recorded on Sat 01 Oct 1966 in Riverside 1
Archive State: 16mm t/r
Determined to stop the Cybermen and the energy drain, General Cutler prepares to launch the deadly Z-bomb. Ben and Polly desperately try to stop the launch as the countdown begins.