In the Sahara desert, a sandstorm batters a deserted drilling station. Thomas "Jack" Jackman a security patrolman, battles through the high winds to find out why all contact with the station has been lost. Originally built for gas exploration, and then abandoned, the site had recently been taken over by a multi-national research team intent on drilling deeper into the earth's crust than ever before.

Peter and Carla have a wasted marriage and constant friction. Peter buys expensive camping gear and, despite the protests of Carla, insists they travel with their dog Cricket to camp on the isolated Moondah Beach in the North Coast with his friend Luke and his girlfriend during the rainy holiday. Peter stops in a pub at the Eggleston Hotel and leaves a message for Luke with the owner of the pub. When Peter takes what he believes to be shortcut to the beach, he gets lost and the couple spends the night sleeping in their SUV. The next morning, Peter organizes the campsite and their intrusion into and abuse of the natural environment begins. During the two days, the couple's relationship deteriorates while the nature avenges the bad treatment the couple has inflicted upon it.

On a weekend boating excursion, husband and wife, Rob and Pia become lost and end up in the most unlikely place, a thick brush filled marsh, on an island in the middle of nowhere. With their boat in disarray, darkness coming on, and a heavy thunderstorm starting up, their only solution is to look for help or seek shelter of some kind. They finally come across a decrepit house and barn with no one home. However, there are definite signs of the house being inhabited, and the enormous crop of marijuana in the barn suggests the homeowners may not welcome their presence. Even worse, there is no telephone or means of communication to the outside world. But when the deranged, redneck owners, Brett, Jimmy and their even more sadistic father Poppy return, Rob and Pia realize a fear far beyond anything they have ever known. Furious with the unwanted intrusion of the affluent, snooping intruders, the monstrously sadistic farmers imprison and torture the couple...