Doctor Who and the Silurians (1970)

Doctor Who and the Silurians
Science Fiction, Drama, Adventure
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.
Starring
Jon Pertwee, Caroline John, Nicholas Courtney, Fulton Mackay, Norman Jones, Peter Miles, Thomasine Heiner, John Newman, Geoffrey Palmer
Directed By
Timothy Combe