Jamie tries to evade Yeti in the tunnels of the London Underground. Meanwhile, The Doctor and Victoria meet a potential new ally - Colonel Lethbridge-Stewart.

Cast:Patrick Troughton, Frazer Hines, Deborah Watling, Nicholas Courtney, Jack Watling, Tina Packer,

Genre:Science Fiction, Adventure, Drama,

country:United Kingdom,

Production:Shapeshifter Studios, Big Finish Creative, BBC Studios,