Last updated 24 March 2024


Episode Three

Series Episode Number: 336

World Premiere: Sat 10 Feb 1973 - 5:51pm GMT [BBC One] (United Kingdom)
First Broadcast: Thu 20 Nov 2014 - 8:00pm EST [Retro TV]
Running Time: 24 minutes 49 seconds

7.80 Million (UK)


Chart Position: 49 () (UK)

Recorded on Mon 03 Jul 1972 in TC6
Archive State: PAL 2 VT



The Drashigs are pursuing Jo and the Doctor through the Miniscope. On Inter Minor, scheming bureaucrats intend to release the Drashigs in a plan to topple their leader.


Production Team hide uncredited
WriterRobert Holmes
DirectorBarry Letts
ProducerBarry Letts (uncredited)
DesignerRoger Liminton
Script EditorTerrance Dicks
Studio LightingClive Thomas
Studio SoundGordon Mackie
Costume DesignerJames Acheson
Make-upAngela Seyfang
Visual Effects DesignerJohn Horton
Film CameramanPeter Hamilton
Film SoundDerek Medus
Film EditorPeter Evans
Special SoundBrian Hodgson
Incidental MusicDudley Simpson
Title MusicRon Grainer
Title Music BBC Radiophonic Workshop
Assistant Floor ManagerKarilyn Collier (uncredited)
Production AssistantChris D'Oyly-John (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)
Floor AssistantIan Pleeth (uncredited)
Director's AssistantFrances Alcock (uncredited)
Technical Manager(TM2)Reg Hutchins (uncredited)
Grams OperatorGordon Phillipson (uncredited)
Vision MixerBill Morton (uncredited)