The Doctor is summoned by the mysterious and powerful White Guardian, and sent on a quest to find the six segments of the Key To Time, which, once assembled, will restore balance to the Universe. Joining the Doctor and K9 is the smart and sassy Romana, a Time Lord fresh from the Academy. Landing on the wintry planet of Ribos to locate the first segment, the Tardis crew quickly find themselves embroiled in a little local trouble with a pair of conmen and an unstable warlord...
Commentary by Tom Baker (The Doctor) and Mary Tamm (Romana)
A Matter of Time: A new documentary exploring Graham Williams' three year tenure as Doctor Who's producer and the Key to Time season as a whole. Featuring Tom Baker, Mary Tamm, Louise Jameson (Leela), Lalla Ward (Princess Astra/Romana), John Leeson (K9), plus new series writer Gareth Roberts
The Ribos File: Cast and crew look back at the making of this story, including Nigel Plaskitt (Unstoffe), Paul Seed (The Graff Vynda-K) and Prentis Hancock (Captain)
Season 16 Trailer: The original BBC1 trailer for the sixteenth season of Doctor Who
Continuities Off-air continuity links from the story's original transmission
Radio Times Billings: Listings from Radio Times (DVD-ROM PC /Mac)
Coming Soon Trailer
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