
Plot
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...
Trailer
Cast

Tom Baker
The Doctor

Mary Tamm
Romana

John Leeson
K-9 (voice)

Cyril Luckham
The Guardian

Iain Cuthbertson
Garron

Nigel Plaskitt
Unstoffe

Paul Seed
Graff Vynda-K

Robert Keegan
Sholakh

Timothy Bateson
Binro

Anne Tirard
The Seeker

Prentis Hancock
Shrieve Captain