Last updated 24 March 2024


Part Six

Series Episode Number: 381

World Premiere: Sat 8 Jun 1974 - 5:38pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 12 Dec 2014 - 8:30pm EST [Retro TV]
Running Time: 24 minutes 43 seconds

8.90 Million (UK)

Appreciation Index: 56 (UK)

Chart Position: 25 () (UK)

Recorded on Wed 01 May 1974 in TC1 TC6 TC8
Archive State: PAL 2 VT



The Doctor takes the blue crystal and returns to Metebelis 3 where he must face the spider ruler, the Great One. But it is an encounter that triggers his second regeneration..


Production Team hide uncredited
WriterRobert Sloman
WriterBarry Letts (uncredited)
DirectorBarry Letts
ProducerBarry Letts (uncredited)
DesignerRochelle Selwyn
Script EditorTerrance Dicks
Studio LightingRalph Walton
Studio SoundJohn Holmes
Costume DesignerL Rowland-Warne
Make-upDeanne Turner
Visual Effects DesignerBernard Wilkie
Incidental MusicDudley Simpson
Special SoundDick Mills
Title MusicRon Grainer
Title Music BBC Radiophonic Workshop
Title SequenceBernard Lodge
Production Unit ManagerGeorge Gallaccio (uncredited)
Technical ManagerTommy Dawson (uncredited)
Vision MixerNick Lake (uncredited)
Grams OperatorAndrew Hunter (uncredited)
Assistant Floor ManagerGraeme Harper (uncredited)
Production AssistantMarion McDougall (uncredited)
Floor AssistantGeoffrey Posner (uncredited)
Visual Effects AssistantIan Scoones (uncredited)
Visual Effects AssistantRichard Conway (uncredited)
Visual Effects AssistantSteve Bowman (uncredited)
Visual Effects AssistantMat Irvine (uncredited)
Make-Up AssistantSheelagh Wells (uncredited)
Director's AssistantHeather Dunthorne (uncredited)
Inlay OperatorDave Chapman (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)