A group of former military elites set out to explore an uncharted abyss, not knowing their worst nightmare is waiting for them deep beneath the ground.
Ralph Burton is a miner who is trapped for several days as a result of a cave-in. When he finally manages to dig himself out, he realizes that all of mankind seems to have been destroyed in a nuclear holocaust. He travels to New York City only to find it deserted. Making a life for himself there,...
A couple of youngish adventurers go into the wilderness of British Columbia in search of a lost colleague. Their plane crashes and they find themselves at the mercy of a crazed old Scottish miner, who has lived in isolation for many decades searching the mountain caves for a chamber of long lost...
A series of strange accidents plaguing a city located near the mine. Two people were pulled through the funnel, which formed after the collapse of tunnels under the lake. Geologist Nina Thiemann discovers that the mine tunnels are insecure and unstable. A woman with an expert in the field of...
A party of tourists -- including a state senator, a park ranger who was her one-time lover, a cantankerous professor, and an escaped convict -- are trapped deep inside the caverns of an unnamed national park, rescued briefly, and then caught in a second cave-in.
