Doctor Who (1963): Ian and Barbara find themselves in a snowy wasteland, searching for the third key. Their only source of help is a duplicitous trapper set on betrayal…

Starring:

Elisabeth Sladen, Frazer Hines, Jacqueline Hill, John Levene, John Scott Martin, Jon Pertwee, Katy Manning, Nicholas Courtney, Pat Gorman, Patrick Troughton, Peter Davison, Tom Baker, William Hartnell, William Russell

Genre:

Adventure, Drama, Sci-Fi