Last updated 24 March 2024


Episode Three

Series Episode Number: 326

World Premiere: Sat 3 Jun 1972 - 5:51pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 12 Dec 1975 - 6:30pm CST [WTTW 11 Chicago]
Running Time: 23 minutes 59 seconds

8.10 Million (UK)


Chart Position: 36 () (UK)

Recorded on Tue 09 May 1972 in TC4
Archive State: RSC conver



Krasis, High Priest of Atlantis, has been summoned by the Master to help him find the crystal of Kronos. The Master uses TOMTIT to summon threats from the past to attack UNIT.


Production Team hide uncredited
WriterRobert Sloman
WriterBarry Letts (uncredited)
DirectorPaul Bernard
ProducerBarry Letts
DesignerTim Gleeson
Script EditorTerrance Dicks
Visual Effects DesignerMichaeljohn Harris
Film CameramanPeter Hamilton
Film SoundDerek Medus
Film EditorMartyn Day
Special SoundBrian Hodgson
MusicDudley Simpson
Title MusicRon Grainer
and BBC Radiophonic Workshop
Studio LightingDerek Hobday (uncredited)
Studio SoundTony Millier (uncredited)
CostumesBarbara Lane (uncredited)
Make-upJoan Barrett (uncredited)
Assistant Floor ManagerRosemary Hester (uncredited)
Production AssistantMarion McDougall (uncredited)
Director's AssistantSue Upton (uncredited)
Film Camera AssistantColin Munn (uncredited)
Film Sound AssistantAlec Christison (uncredited)
GripBill Paget (uncredited)
Film OperativeJohn Phillips (uncredited)
Film OperativeJohn Rice (uncredited)
Film OperativeLee Turner (uncredited)
Film OperativeRay Davies (uncredited)
Costume AssistantDenis Adoo (uncredited)
Costume AssistantJean Cook (uncredited)
Design AssistantKen Ledsham (uncredited)
Make-Up AssistantJacki Block (uncredited)
Make-Up AssistantJean Steward (uncredited)
Music Sound SupervisorsAdrian Stocks (uncredited)
Music Sound SupervisorsRay Angel (uncredited)
Visual Effects AssistantCharlie Lumm (uncredited)
Visual Effects AssistantPeter Pegrum (uncredited)
Artist BookingCatriona Thompson (uncredited)
Artist BookingPhyllis Page (uncredited)
Artist BookingSybil Cave (uncredited)
Artist BookingSusan Hopkins (uncredited)
Title Music ArrangerDelia Derbyshire (uncredited)
Title SequenceBernard Lodge (uncredited)
Floor AssistantStephen Morris (uncredited)
Technical Manager(TM2)Frank Rose (uncredited)
Grams OperatorGordon Phillipson (uncredited)
Vision MixerShirley Coward (uncredited)