'They Came From Outer Space'

This is a gritty science fiction horror. Set deep in the abandoned tunnels and caverns of London's sewers, something is festering, something truly alien - voraciously hungry. At first the Police suspect an elaborate robbery but when people start going missing and a Rapid-Reaction Team stumble upon the truth, the armed forces are brought to bear - and before long the underground warrens become one of the bloodiest conflicts the capital has ever known. 'It's a one way ticket to Hell - but the horror is unlikely to stop there!'