At a top-secret mining facility, strange accidents happen and workers begin disappearing. A special task force is organized to into the mine and tries to get it operational, but when they arrive, the site is completely deserted and the whole place is littered with human remains. They do find a young boy, (Ryan Thomas Johnson) whose father worked in the mine and is now in shock. The government agent in charge, (John Savage) is apprehensive about letting the soldiers know the true reason for the base, and successfully blocks many attempts to find out. Upset over his team's attempts to find out anything, their captain (Don Stroud) goes into the forbidden bowels of the mine to see what is going on and is savagely mauled by an unseen animal, who drags him down to even lower levels...