The Doctor has been chosen for a vitally important task- the search for the Key to Time. Given a new companion, a Tracer and a mission by the White Guardian, the doctor's journies are not as random as before...
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The search for the first segment take him to Ribos, to an encounter with a conman and a mad dictator. Watch out for the Shrivenzale!
What do you think of The Ribos Operation?