Investigating mysterious power failures and a death at an underground research centre, The Doctor discovers a colony of Silurians - prehistoric, intelligent reptiles who went into hibernation before man evolved. But now they have woken up, and they are prepared to wipe out mankind with a killer plague to get their planet back.

Genres

Cast

Jon Pertwee

The Doctor

Caroline John

Liz Shaw

Nicholas Courtney

Brigadier Lethbridge-Stewart

Fulton Mackay

Dr. Quinn

Norman Jones

Major Baker

Peter Miles

Dr. Lawrence

Geoffrey Palmer

Masters

Paul Darrow

Captain Hawkins

Pat Gorman

Silurian

Peter Halliday

Silurian (voices)