Last updated 24 March 2024


Part Four

Series Episode Number: 591

World Premiere: Wed 9 Feb 1983 - 6:47pm GMT [BBC One] (United Kingdom)
First Broadcast: Thu 30 Apr 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 33 seconds

7.70 Million (UK)

Appreciation Index: 68 (UK)

Chart Position: 78 () (UK)




As the Doctor's ethics are challenged and the two Brigadiers finally meet, Turlough plots with the Black Guardian to bring the Time Lord down once and for all...


Production Team hide uncredited
WriterPeter Grimwade
DirectorPeter Moffatt
ProducerJohn Nathan-Turner
DesignerStephen Scott
Script EditorEric Saward
Title SequenceSid Sutton
Costume DesignerAmy Roberts
Make-up ArtistSheelagh Wells
Studio LightingDon Babbage
Studio SoundMartin Ridout
Technical ManagerAlan Arbuthnott
Senior CameramanRobin Barnes
Videotape EditorRod Waldron
Visual Effects DesignerStuart Brisdon
Video EffectsRobin Lobb
Vision MixerCarol Johnson
Film CameramanGodfrey Johnson
Film SoundRon Brown
Film EditorChris Woolley
Production ManagerAnn Aronsohn
Production AssociateJune Collins
Production AssistantValerie Letley
Assistant Floor ManagerIan D Tootle
Incidental MusicPaddy Kingsland
Special SoundDick Mills
Special Sound BBC Radiophonic Workshop
Title MusicRon Grainer (uncredited)
Title Music ArrangerPeter Howell (uncredited)
Nyssa created byJohnny Byrne (uncredited)
Brigadier created byMervyn Haisman (uncredited)
Brigadier created byHenry Lincoln (uncredited)