Last updated 24 March 2024


Episode Two

Series Episode Number: 294

World Premiere: Sat 17 Apr 1971 - 6:12pm BST [BBC One] (United Kingdom)
First Broadcast: Tue 2 Dec 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 22 minutes 43 seconds

8.50 Million (UK)


Chart Position: 28 () (UK)

Recorded on Sat 06 Mar 1971 in Television Centre 4
Archive State: RSC conver



The Interplanetary Mining Corporation, represented by Captain Dent, arrives on the planet claiming that the colonists have no right to be there.


Production Team hide uncredited
WriterMalcolm Hulke
DirectorMichael Briant
ProducerBarry Letts
DesignerTim Gleeson
Script EditorTerrance Dicks
Visual Effects DesignerBernard Wilkie
Film CameramanPeter Hall
Film EditorWilliam Symon
Special SoundBrian Hodgson
Special Sound BBC Radiophonic Workshop
Incidental MusicDudley Simpson
Title MusicRon Grainer
Title Music BBC Radiophonic Workshop
Studio LightingRalph Walton (uncredited)
Studio SoundDavid Hughes (uncredited)
Studio SoundTony Millier (uncredited)
CostumesMichael Burdle (uncredited)
Make-upJan Harrison (uncredited)
Production AssistantNicholas John (uncredited)
Technical ManagerBernard Fox (uncredited)
Film Sound RecordistDerek Medus (uncredited)
Film Sound AssistantEddie Dougall (uncredited)
Film Camera AssistantAlec Curtis (uncredited)
Visual Effects AssistantIan Scoones (uncredited)
Visual Effects AssistantColin Mapson (uncredited)
Visual Effects AssistantJohn Friedlander (uncredited)
Grams OperatorGordon Phillipson (uncredited)
Vision MixerJim Stephens (uncredited)
Assistant Floor ManagerGraeme Harper (uncredited)
Floor AssistantJohn Turner (uncredited)
Director's AssistantPauline Silcock (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)