Overview

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.

Details

Cast

Jon Pertwee

Caroline John

Nicholas Courtney

Fulton Mackay

Norman Jones

Peter Miles

Thomasine Heiner

John Newman

Geoffrey Palmer

Ian Cunningham