Last updated 24 March 2024


Episode Six

Series Episode Number: 237

World Premiere: Sat 1 Mar 1969 - 5:14pm BST [BBC One] (United Kingdom)
Running Time: 44 minutes 31 seconds

7.70 Million (UK)

Appreciation Index: 59 (UK)

Chart Position: 59 () (UK)

Recorded on Fri 07 Feb 1969 in Lime Grove D
Archive State: 16mm t/r



Returning to the Moonbase, the Doctor confronts Slaar and the remaining Ice Warriors and must find a way of deflecting the invasion fleet that is heading towards them.


Production Team hide uncredited
WriterBrian Hayles
WriterTerrance Dicks (uncredited)
DirectorMichael Ferguson
ProducerPeter Bryant
DesignerPaul Allen
Script EditorTerrance Dicks
Film CameramanPeter Hall
Film SoundRon Blight (uncredited)
Film EditorMartyn Day
LightingHoward King
SoundBryan Forgham
CostumesBobi Bartlett
Make-upSylvia James
Visual Effects DesignerBill King
Visual Effects Designer Trading Post
Incidental MusicDudley Simpson
Special SoundBrian Hodgson
Title MusicRon Grainer
and the BBC Radiophonic Workshop
Vision MixerChris Griffin (uncredited)
Grams OperatorJohn Lloyd (uncredited)
Assistant Floor ManagerTrina Cornwell (uncredited)
Floor AssistantJohn Norton (uncredited)
Production AssistantFiona Cumming (uncredited)
Film Operations ManagerHugh Wilson (uncredited)
Film Camera AssistantMike Spooner (uncredited)
Film Sound AssistantI H Morton (uncredited)
Film Sound AssistantRon Keightley (uncredited)
Design AssistantPeter Blacken (uncredited)
Director's AssistantRaquel E. Ebbutt (uncredited)
Artist BookingBarbara Buchanan (uncredited)
Title SequenceBernard Lodge (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)