Last updated 24 March 2024


Episode Six

Series Episode Number: 225

World Premiere: Sat 7 Dec 1968 - 5:15pm BST [BBC One] (United Kingdom)
Running Time: 23 minutes 20 seconds

6.50 Million (UK)

Appreciation Index: 56 (UK)

Chart Position: 72 () (UK)

Recorded on Fri 25 Oct 1968 in Lime Grove D
Archive State: 16mm t/r



Zoe, Jamie and Isobel confront the Cybermen advancing on them from all sides in the sewers beneath London.

The Doctor hurries to devise a protection from the Cybermen's hypnotic signal, as they set their sights on a paralysed London.


Production Team hide uncredited
WriterDerrick Sherwin
From a story byKit Pedler
DirectorDouglas Camfield
ProducerPeter Bryant
DesignerRichard Hunt
Script EditorTerrance Dicks
Incidental MusicDon Harper
Title MusicRon Grainer
and the BBC Radiophonic Workshop
Film CameramanAlan Jonas (uncredited)
Film Sound RecordistBill Chesneau (uncredited)
Film EditorMartyn Day (uncredited)
CostumesBobi Bartlett (uncredited)
Make-upSylvia James (uncredited)
LightingRobbie Robinson (uncredited)
SoundBryan Forgham (uncredited)
Visual EffectsBill King (uncredited)
Visual Effects Trading Post (uncredited)
Special SoundBrian Hodgson (uncredited)
Production AssistantChris D'Oyly-John (uncredited)
Vision MixerDavid Langford (uncredited)
Grams OperatorRon Arnett (uncredited)
Technical ManagerDon Babbage (uncredited)
Director's AssistantSue Sly (uncredited)
Assistant Floor ManagerSue Willis (uncredited)
Floor AssistantMichael Ward (uncredited)
Film Operations ManagerHugh Wilson (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)