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 ...
The Web of Fear: Part 5 The Doctor replaces the Yeti’s sphere and finds the creature completely under his control. The Great Intelligence using the Professor's voice.
Doctor Who (1963–1996) — Season 5, The Web of Fear: Episode 4 The Doctor is able to acquire a sample of the web but the Yeti strike back at Travers. BBC One ...