Last updated 24 March 2024


Part Four

Series Episode Number: 545

World Premiere: Sat 24 Jan 1981 - 5:09pm GMT [BBC One] (United Kingdom)
First Broadcast: Wed 1 Apr 2015 - 8:30pm EDT [Retro TV]
Running Time: 24 minutes 53 seconds

7.80 Million (UK)

Appreciation Index: 59 (UK)

Chart Position: 69 () (UK)

Recorded on Fri 03 Oct 1980 in Television Centre 1



With the void collapsing around them, time is running out. Rorvik ignores the Doctor's warnings and takes a desperate gamble which could have fatal consequences.


Production Team hide uncredited
WriterStephen Gallagher
DirectorPaul Joyce
ProducerJohn Nathan-Turner
Executive ProducerBarry Letts
DesignerGraeme Story
Script EditorChristopher H Bidmead
Title SequenceSid Sutton
Costume DesignerJune Hudson
Make-up ArtistPauline Cox
Studio LightingJohn Dixon
Studio SoundAlan Fogg
Technical ManagerJohn Dean
Senior CameramanAlec Wheal
Videotape EditorRod Waldron
Visual Effects DesignerMat Irvine
Video EffectsRobin Lobb
Vision MixerJim Stephens
Production AssistantGraeme Harper
Production Unit ManagerAngela Smith
Director's AssistantJoyce Stansfield
Assistant Floor ManagerVal McCrimmon
Incidental MusicPeter Howell
Special SoundDick Mills
Studio EngineerDave Murphy (uncredited)
Grams OperatorGordon Phillipson (uncredited)
Assistant Costume DesignerSarah Leigh (uncredited)
BookerNansi Davies (uncredited)
Design AssistantRoger Harris (uncredited)
Show Working SupervisorHarry Randall (uncredited)
Production SecretaryJane Judge (uncredited)
Make-Up AssistantJan Lee (uncredited)
Make-Up AssistantLisa Pickering (uncredited)
Make-Up AssistantHeather Squires (uncredited)
Contracts AssistantJonathan McLeish (uncredited)
Gundan MakerRoger Oldhamstead (uncredited)
Floor AssistantLaura Gilbert (uncredited)
GraphicsIan Hewett (uncredited)
Props BuyerGill Meredith (uncredited)
FacilitiesCarole Vigurs (uncredited)
Effects AssistantBryony Keating (uncredited)
Effects AssistantSteve Lucas (uncredited)
Effects AssistantCharlie Lumm (uncredited)
Effects CameramanGene Carr (uncredited)
Lighting ChargehandLes Calder (uncredited)
Trainee Production AssistantSue Davis (uncredited)
Title MusicRon Grainer (uncredited)
Title Music ArrangerPeter Howell (uncredited)