The Doctor and his companions arrive on a spaceship headed for Earth, populated by natives of Earth from various different eras and commanded by the leaders of the Urbankan race. What are the Urbankans' intentions when they reach Earth?
Peter Davison
as The Doctor
Matthew Waterhouse
as Adric
Sarah Sutton
as Nyssa
Janet Fielding
as Tegan Jovanka
Stratford Johns
as Monarch
Annie Lambert
as Enlightenment
Paul Shelley
as Persuasion
Philip Locke
as Bigon
Nadia Hammam
as Villagra
Burt Kwouk
as Lin Futu
Illarrio Bisi Pedro
as Kurkutji
