In an isolated spot in the Nevada desert people and cars start getting sucked down into the ground with little bits being regurgitated, so what's going on? It seems like mutant man-eating worms are on the loose. Vastly superior to the fifties B-movies of the same genre, highlights include a survivalist couple determined to put their cache of heavy weaponry to some use, and the visceral special effects......you can almost smell the decaying flesh!