Last updated 09 January 2020


Episode One

Episode One

Series Episode Number: 312

World Premiere: Sat 26 Feb 1972 - 5:50pm GMT [BBC One] (United Kingdom)
First Broadcast: Mon 17 Nov 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 40 seconds

6.40 Million (UK)


Chart Position: 76 () (UK)

Recorded on Mon 15 Nov 1971 in TC8
Archive State: RSC conver



The Doctor and Jo visit the Master who is held prisoner on an island. There they learn that several ships have recently been sunk in the area and the Doctor decides to investigate.


Production Team hide uncredited
WriterMalcolm Hulke
DirectorMichael E Briant
ProducerBarry Letts
DesignerTony Snoaden
Script EditorTerrance Dicks
Studio LightingMike Jefferies
Studio SoundTony Millier
CostumesMaggie Fletcher
Make-upSylvia James
Visual Effects DesignerPeter Day
Film CameramanPeter Sargent
Film EditorMartyn Day
Special SoundBrian Hodgson
Incidental MusicMalcolm Clarke
Incidental Music BBC Radiophonic Workshop
Title MusicRon Grainer
Title Music BBC Radiophonic Workshop
With thanks to Royal Navy
Grams OperatorGordon Phillipson (uncredited)
Film Operations AssistantPW Walsh (uncredited)
Film Sound AssistantAlec Christison (uncredited)
Film Camera AssistantJohn Jefford (uncredited)
Make-Up AssistantJoanne Burn (uncredited)
Technical ManagerPeter Valentine (uncredited)
Film Unit ElectricianJohn Collins (uncredited)
Film Camera AssistantIan Punter (uncredited)
Costume AssistantGrace Dawson (uncredited)
Artist BookingSybil Cave (uncredited)
Property BuyerJohn Watson (uncredited)
Production SecretarySarah Newman (uncredited)
Floor AssistantTony Cox (uncredited)
Costume AssistantJack Roe (uncredited)
Artist BookingPhyllis Page (uncredited)
Vision MixerJohn Gorman (uncredited)
Production AssistantPauline Silcock (uncredited)
Film Unit ElectricianTony Thorpe (uncredited)
GripBill Paget (uncredited)
Film Camera AssistantRoger Twyman (uncredited)
ArmourerDouglas Needham (uncredited)
Costume AssistantBarry Simmons (uncredited)
Fight Arranger HAVOC (uncredited)
Fight ArrangerDerek Ware (uncredited)
AssistantPauline Silcock (uncredited)
Property BuyerJoe Bates (uncredited)
Assistant Floor ManagerJohn Bradburn (uncredited)
Production AssistantColin Dudley (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)
Location AssistantJennie Betts (uncredited)
DriverS Hedges (uncredited)
DriverEdward Kirkham (uncredited)
Location Transport Pergo Minibuses (uncredited)
Pergo DriverBert West (uncredited)
Location Catering Cinefood (uncredited)
Location Trailers Seacliff Holiday Caravans (uncredited)
Visual Effects AssistantLen Hutton (uncredited)