In the year 4000, the Daleks conspire to conquer the Solar System. Their scheme involves treachery at the highest levels and a weapon capable of destroying the very fabric of time. Only the Doctor and his friends can prevent catastrophe — and there is no guarantee they will escape with their lives...
William Hartnell
as The Doctor
Peter Purves
as Steven Taylor
Adrienne Hill
as Katarina
Jean Marsh
as Sara Kingdom
Kevin Stoney
as Mavic Chen
Nicholas Courtney
as Bret Vyon
Peter Butterworth
as The Monk
Brian Cant
as Kert Gantry
Maurice Browning
as Karlton
Julian Sherrier
as Zephon
Roy Evans
as Trantis
Bryan Mosley
as Malpha/Prop Man
