When the Master steals the Time Lords' secret file on the Doomsday Weapon, they grant the Doctor a temporary reprieve from his exile on Earth to deal with the crisis. He and Jo arrive on the planet Uxarieus and become enmeshed in a struggle between an agrarian colony and a powerful mining corporation.
Genres:
Jon Pertwee as The Doctor
Katy Manning as Jo Grant
Nicholas Courtney as Brigadier Lethbridge-Stewart
Roger Delgado as The Master
Nicholas Pennell as Winton
John Ringham as Ashe
David Webb as Leeson
Sheila Grant as Jane Leeson
Roy Skelton as Norton
Helen Worth as Mary Ashe
John Line as Martin
Mitzi McKenzie as Mrs. Martin
John Scott Martin as Robot
Pat Gorman as Primitive / Voice / Long / Colonist
Graham Leaman as Time Lord
Peter Forbes-Robertson as Time Lord
John Baker as Time Lord
Bernard Kay as Caldwell
Morris Perry as Captain Dent
Tony Caunter as Morgan
John Herrington as Holden
Stanley McGeagh as Alien
John Tordoff as Alec Leeson
Norman Atkyns as The Guardian
Roy Heymann as Alien Priest
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