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.
as The Doctor
as Jo Grant
as Brigadier Lethbridge-Stewart
as The Master
as Winton
as Ashe
as Leeson
as Jane Leeson
as Norton
as Mary Ashe
as Martin
as Mrs. Martin
as Robot
as Primitive / Voice / Long / Colonist
as Time Lord
as Time Lord
as Time Lord
as Caldwell
as Captain Dent
as Morgan
as Holden
as Alien
as Alec Leeson
as The Guardian
as Alien Priest