Last updated 05 May 2023


Part One

Part One

Series Episode Number: 390

World Premiere: Sat 22 Feb 1975 - 5:30pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 7 Mar 1980 - 5:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 27 seconds

11.00 Million (UK)


Chart Position: 18 () (UK)

Recorded on Wed 02 Oct 1974 in Location (OB)



The Doctor, Harry and Sarah find Earth is a desolate wilderness. They meet a group of stranded human colonists who are being hunted by a robot and experimented upon by its master.


Production Team hide uncredited
WriterBob Baker
WriterDave Martin
DirectorRodney Bennett
ProducerPhilip Hinchcliffe
DesignerRoger Murray-Leach
Script EditorRobert Holmes
LightingTommy Thomas
SoundVic Godrich
Costume DesignerBarbara Kidd
Make-upSylvia James
Visual Effects DesignerJohn Friedlander
Visual Effects DesignerTony Oxley
Incidental MusicDudley Simpson
Special SoundDick Mills
Title MusicRon Grainer
and BBC Radiophonic Workshop
Title SequenceBernard Lodge
Production AssistantMarion McDougall
Production Unit ManagerGeorge Gallaccio
Assistant Floor ManagerRuss Karel (uncredited)
Vision MixerMary Kellehar (uncredited)
Visual Effects AssistantPeter Pegrum (uncredited)
Make-Up AssistantMartha Livesley (uncredited)
Technical Manager(TM2)George Jakins (uncredited)
Props SupervisorHarry Randall (uncredited)
Props BuyerIvan Rodgers (uncredited)
Scenic Props BuyerDavid Privett (uncredited)
PropsDick Carey (uncredited)
Design AssistantShelagh Lawson (uncredited)
Assistant Costume DesignerRichard Winter (uncredited)
Artist BookingPauline Mansfield Clark (uncredited)
Location Caterers Cinefood (uncredited)
Location Facilities AssistantJennie Betts (uncredited)
AssistantPauline Silcock (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)