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...

Characters hide uncredited
Doctor WhoJon Pertwee
Brigadier Lethbridge-StewartNicholas Courtney
The MasterRoger Delgado
Jo GrantKaty Manning
Mike YatesRichard Franklin
Sergeant BentonJohn Levene
ChinnPeter Bathurst
FilerPaul Grist
HardimanDonald Hewlett
Axon ManBernard Holley
TechnicianRoyston Farrell (uncredited)
Axon GlobClive Roger (uncredited)
Laboratory TechnicianVictor Crawford (uncredited)
Axon ManSteve King (uncredited)
Axon ManDavid Aldridge (uncredited)
AxonSteve Smart (uncredited)
Axon GlobClinton Morris (uncredited)
Axon GlobDouglas Roe (uncredited)
Axon GlobPeter Holmes (uncredited)
SoldierMichael Stainer (uncredited)
SoldierBrian Gilmar (uncredited)
SoldierEmmett Hennessy (uncredited)
SoldierBob Blaine (uncredited)
SoldierPierce McAvey (uncredited)
SoldierBrian Justice (uncredited)
Stunt ManMarc Boyle (uncredited)
Stunt ManNick Hobbs (uncredited)
Stunt ManJack Cooper (uncredited)
Stunt ManSteve Emerson (uncredited)
Stunt ManStuart Fell (uncredited)
Stunt ManDerek Martin (uncredited)
Stunt ManReg Harding (uncredited)