Doctor Who & The Cave Monsters Mmpb

"U.N.I.T. are called in to investigate security at a secret research center buried under Wenley Moor. Unknown to the Doctor and his colleagues, the work at the centre has woken a group of Silurians, the intelligent reptiles that were the dominant lifeform on Earth in prehistoric times. Now the Silurians are appalled to find 'their' planet populated by upstart apes. The Doctor hopes to negotiate a peace, but there are those on both sides who cannot bear the thought of humans and Silurians living together. The battle for planet Earth begins! Introduction by Terrance Dicks."