The TARDIS arrives on an extinct volcanic island. Before long, the travellers are captured and taken into the depths of the Earth, where they find a hidden civilisation — the lost city of Atlantis.
Patrick Troughton
as The Doctor
Anneke Wills
as Polly
Michael Craze
as Ben Jackson
Frazer Hines
as Jamie McCrimmon
Joseph Fürst
as Zaroff
Colin Jeavons
as Damon
Noel Johnson
as King Thous
Tom Watson
as Ramo
Peter Stephens
as Lolem
Gerald Taylor
as Damon's Assistant
Catherine Howe
as Ara
P.G. Stephens
as Sean
