The Doctor visits his old Time Lord friend Chronotis in Cambridge, 1979. But the ruthless Skagra has also arrived to retrieve a book that will help unlock one of the Time Lords' greatest secrets: what is Shada? Filming for this story was never finished, and in this version the unfilmed material is completed via animation.
Tom Baker
The Doctor
Lalla Ward
Romana (voice)
David Brierly
K9 (archive footage) (voice)
Christopher Neame
Skagra (voice)
Daniel Hill
Chris Parsons (voice)
Denis Carey
Professor Chronotis (archive footage)
Victoria Burgoyne
Clare Keightley (voice)
Gerald Campion
Wilkin (archive footage)
