In a twisted social experiment, eighty Americans are locked in their high-rise corporate office in Bogotá, Colombia, and ordered by an unknown voice coming from the company's intercom system to participate in a deadly game of kill or be killed.

A mysterious guide escorts an enthusiastic adventurer and his friend into the Amazon jungle, but their journey turns into a terrifying ordeal as the darkest elements of human nature and the deadliest threats of the wild force them to fight for survival.

Three backpackers travel into the Australian Outback, only to find themselves stranded at Wolf Creek crater. Once there they are encountered by a bushman, Mick Taylor, who offers them a ride back to his place. Little do the three know that their adventure into the Outback, would be a complete nightmare after the backpackers find a way to escape.

The outback once more becomes a place of horror as another unwitting tourist becomes the prey for crazed, serial-killing pig-hunter Mick Taylor.

A family returns from a Grand Canyon vacation, haunted by an ancient supernatural entity they unknowingly awakened and engages them in a fight for their survival.