The TARDIS arrives in Little Hodcombe. Tegan wants to visit her grandfather, only he's disappeared. There's also a war game going on, and it's getting out of hand.

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