Last updated 09 January 2020


Part One

Series Episode Number: 402

World Premiere: Sat 30 Aug 1975 - 5:46pm BST [BBC One] (United Kingdom)
First Broadcast: Tue 25 Mar 1980 - 5:30pm CST [WTTW 11 Chicago]
Running Time: 21 minutes 41 seconds

8.40 Million (UK)

Appreciation Index: 59 (UK)

Chart Position: 29 () (UK)

Recorded on Mon 07 Apr 1975 in TC3 at these locations
BBC Genome Project: see entry

BBC Programme Page
IMDb


The Doctor, Sarah and Harry return to Earth to help the Brigadier discover what is causing the destruction of oil rigs off the coast of Scotland.


Production Team hide uncredited
WriterRobert Banks Stewart
DirectorDouglas Camfield
ProducerPhilip Hinchcliffe
DesignerNigel Curzon
Script EditorRobert Holmes
Film CameramanPeter Hall
Film SoundJohn Tellick
Film EditorIan McKendrick
Studio LightingJohn Dixon
Studio SoundMichael McCarthy
Visual Effects DesignerJohn Horton
Costume DesignerJames Acheson
Make-upSylvia James
Incidental MusicGeoffrey Burgon
Special SoundDick Mills
Title MusicRon Grainer
Title Music BBC Radiophonic Workshop
Title SequenceBernard Lodge
Production Unit ManagerGeorge Gallaccio
Production AssistantEdwina Craze
Assistant Floor ManagerRosemary Webb (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Post Production SoundMichael McCarthy (uncredited)
Grams OperatorGordon Phillipson (uncredited)
Make-Up AssistantSuzanne Jenson (uncredited)
Make-Up AssistantMartha Livesley (uncredited)
Visual Effects AssistantRoger Barham (uncredited)
Visual Effects AssistantLen Hutton (uncredited)
Visual Effects AssistantCharlie Lumm (uncredited)
Visual Effects AssistantColin Mapson (uncredited)
Film Camera AssistantAlec Curtis (uncredited)
Film Sound AssistantClive Derbyshire (uncredited)
GripRay Monks (uncredited)
GripDennis Rogers (uncredited)
Props BuyerEric Baker (uncredited)
Technical ManagerHenry Barber (uncredited)
CameramanMike Figini (uncredited)
CameramanMark Hatcher (uncredited)
Senior CameramanPaul Kay (uncredited)
CameramanBrian Parker (uncredited)
CameramanDavid Parker (uncredited)
Director's AssistantJoy Sinclair (uncredited)
Props BuyerRobert Sutton (uncredited)