Last updated 24 March 2024


Episode Four

Series Episode Number: 292

World Premiere: Sat 3 Apr 1971 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 28 Nov 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 25 minutes 16 seconds

7.80 Million (UK)


Chart Position: 49 () (UK)

Recorded on Sat 06 Feb 1971 in Television Centre 4
Archive State: PAL 2 VT



With Axos poised to destroy the world, the Doctor appears to switch sides and allies himself with the Master. Together they plan to escape Earth, leaving it to Axos...


Production Team hide uncredited
WriterBob Baker
WriterDave Martin
DirectorMichael Ferguson
ProducerBarry Letts
DesignerKenneth Sharp
Script EditorTerrance Dicks
Studio LightingRalph Walton
Studio SoundDave Kitchen
CostumesBarbara Lane
Make-upRhian Davies
Visual Effects DesignerJohn Horton
Film CameramanA A Englander
Film EditorBob Rymer
Fight Arranger HAVOC
Special SoundBrian Hodgson
Incidental MusicDudley Simpson
Title MusicRon Grainer
Title Music BBC Radiophonic Workshop
Production AssistantMarion McDougall (uncredited)
Assistant Floor ManagerRoselyn Parker (uncredited)
Technical ManagerBernard Fox (uncredited)
Grams OperatorLinton Howell-Hughes (uncredited)
Senior CameramanAlec Wheal (uncredited)
Vision MixerMike Catherwood (uncredited)
Floor AssistantChris Fox (uncredited)
Videotape EditorGeoff Higgs (uncredited)
Props BuyerRay Warwick (uncredited)
GripBill Paget (uncredited)
Costume AssistantAndrew Rose (uncredited)
Costume AssistantRobert Springett (uncredited)
Make-Up AssistantJudy Kaine (uncredited)
Make-Up AssistantVicky Thomas (uncredited)
Film SoundLes Collins (uncredited)
Artist BookingSybil Cave (uncredited)
Location BookerJennie Betts (uncredited)
Film Camera AssistantDavid Evans (uncredited)
Film Sound AssistantAlec Christison (uncredited)
Visual Effects AssistantPeter Logan (uncredited)
Production SecretarySarah Newman (uncredited)
Axon CostumesJules Baker (uncredited)
Location Caterer Cinefood (uncredited)
Visual Effects AssistantDave Havard (uncredited)
Visual Effects AssistantColin Mapson (uncredited)
Visual Effects AssistantJim Ward (uncredited)
AssistantSue Stapely (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)