Last updated 24 March 2024


Episode 3

Series Episode Number: 212

World Premiere: Sat 24 Aug 1968 - 5:15pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 19 Sep 2014 - 8:00pm EDT [Retro TV]
Running Time: 24 minutes 6 seconds

5.40 Million (UK)

Appreciation Index: 55 (UK)

Chart Position: 65 () (UK)

Recorded on Fri 31 May 1968 in Television Centre 3
Archive State: 35mm t/r



Zoe and the Dulcians are captured by the Quarks and set to work. Unable to convince the Dulcian council of the Dominator threat, the Doctor returns to the island to rescue Zoe.


Production Team hide uncredited
WriterNorman AshbyInfo
WriterNorman AshbyInfo
DirectorMorris Barry
ProducerPeter Bryant
DesignerBarry Newbery
Script EditorDerrick Sherwin
Title MusicRon Grainer
and the BBC Radiophonic Workshop
CostumesMartin Baugh (uncredited)
Make-upSylvia James (uncredited)
LightingSam Neeter (uncredited)
SoundRichard Chubb (uncredited)
Visual Effects DesignerRon Oates (uncredited)
Special SoundBrian Hodgson (uncredited)
Production AssistantJohn Bruce (uncredited)
Floor AssistantDavid Smith (uncredited)
Film CameramanPeter Hamilton (uncredited)
Film EditorChris Hayden (uncredited)
Assistant Floor ManagerBarbara Stuart (uncredited)
Effects AssistantAlan Whibley (uncredited)
Technical ManagerReg Jones (uncredited)
Film Operations ManagerHugh Wilson (uncredited)
Artist BookingBarbara Parkes Buchanan (uncredited)
AssistantJoan Elliott (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)