Last updated 24 March 2024


Part Four

Series Episode Number: 525

World Premiere: Sat 12 Jan 1980 - 6:06pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 2 Nov 2001 - 10:30pm CST [Prairie Public Television]
Running Time: 26 minutes 45 seconds

10.40 Million (UK)

Appreciation Index: 67 (UK)

Chart Position: 26 () (UK)




On the dying world of Crinoth, Romana discovers the truth behind the Nimon's empty promises. The Doctor must find a way to shut down the power complex on Skonnos.


Production Team hide uncredited
WriterAnthony Read
DirectorKenny McBain
ProducerGraham Williams
DesignerGraeme Story
Script EditorDouglas Adams
Costume DesignerJune Hudson
Make-up ArtistChristine Walmesley-Cotham
Visual Effects DesignerPeter Pegrum
Electronic EffectsDave Jervis
Vision MixerJames Gould
Videotape EditorRod Waldron
Studio LightingNigel Wright
Studio SoundJohn Hartshorn
Technical ManagerDerek Thompson
Senior CameramanAlec Wheal
Production AssistantHenry Foster
Production Unit ManagerJohn Nathan-Turner
Director's AssistantElizabeth Sherry
Assistant Floor ManagerRosemary Chapman
Incidental MusicDudley Simpson
Special SoundDick Mills
K9 OperatorSteve Cambden (uncredited)
Floor AssistantSally Bates (uncredited)
Grams OperatorGordon Phillipson (uncredited)
Show Working SupervisorChick Hertherington (uncredited)
Design AssistantRorie Mitchell (uncredited)
Make-Up AssistantFrancoise Cresson (uncredited)
Make-Up AssistantChristine Greenwood (uncredited)
Make-Up AssistantJenny Hughes (uncredited)
Title MusicRon Grainer (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)
Title Music BBC Radiophonic Workshop (uncredited)