Last updated 24 March 2024


Part Two

Series Episode Number: 519

World Premiere: Sat 1 Dec 1979 - 6:04pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 21 Sep 2001 - 10:30pm CDT [Prairie Public Television]
Running Time: 22 minutes 44 seconds

9.60 Million (UK)


Chart Position: 31 () (UK)

Recorded on Tue 14 Aug 1979 in Television Centre 6



The Doctor and Romana are horrified to discover that Tryst has been storing real life forms in his CET machine and that someone is smuggling the dangerous narcotic, Vraxoin.


Production Team hide uncredited
WriterBob Baker
DirectorAlan Bromly
ProducerGraham Williams
DesignerRoger Cann
Script EditorDouglas Adams
Costume DesignerRupert Jarvis
Make-up ArtistJoan Stribling
Visual Effects DesignerColin Mapson
Video EffectsA J Mitchell
Vision MixerNigel Finnis
Videotape EditorRod Waldron
Studio LightingWarwick Fielding
Studio SoundAnthony Philpott
Technical ManagerTerry Brett
Senior CameramanPeter Hider
Production AssistantCarolyn Montagu
Production Unit ManagerJohn Nathan-Turner
Director's AssistantMonica Rodger
Assistant Floor ManagerVal McCrimmon
Incidental MusicDudley Simpson
Special SoundDick Mills
Floor AssistantAlison Barnett (uncredited)
Grams OperatorAndrew Hunter (uncredited)
Make-Up AssistantElizabeth Hardiment (uncredited)
Design AssistantCarol Smith (uncredited)
Prop BuyerRobert Fleming (uncredited)
Show Working SupervisorChick Hetherington (uncredited)
K9 OperatorSteve Cambden (uncredited)
Title MusicRon Grainer (uncredited)
Title Music BBC Radiophonic Workshop (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)