The TARDIS narrowly avoids becoming engulfed in a cobwebby substance in space. It arrives in the London Underground railway system, the tunnels of which are being overrun by the web and by the Great Intelligence's robot Yeti. The time travellers learn this crisis was precipitated when Professor Travers, whom they first met in the Himalayas some thirty years earlier, accidentally caused one of the Yeti to be reactivated, opening the way for the Intelligence to invade again.
Douglas Camfield
Director
Mervyn Haisman
Writer
Henry Lincoln
Writer
Patrick Troughton
The Doctor
Frazer Hines
Jamie McCrimmon
Deborah Watling
Victoria Waterfield
Nicholas Courtney
Colonel Lethbridge-Stewart
Jack Watling
Professor Travers
Tina Packer
Anne Travers
Jon Rollason
Harold Chorley
Ralph Watson
Captain Knight
Jack Woolgar
Staff Sgt. Arnold
Doctor Who: Deep Breath77%
Frankenstein Unbound58%
Stargate SG-1: Children of the Gods72%
Spectral65%
Stargate: Continuum71%
Doctor Who: The Snowmen77%
The Last Mimzy63%
Space/Time59%
207366%
Star Wars: The Rise of Skywalker62%
Stalked by My Doctor59%
Books of Blood62%
Titan A.E.66%
Vesper62%
Collision Earth58%
Die Alone62%
Doctor Who: The Day of the Doctor81%
The 35560%
Cranston Academy: Monster Zone60%
Doctor Who: Voyage of the Damned75%
