Doctor Who and the Cave-Monsters

All is not well at the Wenley Moor underground atomic research station: there are unaccountable losses of power-output; nervous breakdowns amongst the staff; and then – a death! UNIT is called in and the Brigadier is soon joined by DOCTOR WHO and Liz Shaw in a tense and exciting adventure with subterranean reptile men – SILURIANS – and a 40ft. high Tyrannosaurus rex, the biggest, most savage mammal which ever trod the earth!