A feuding couple--Michelle (Kate Hodge) and Ryan (William Butler)--are driving from California to Florida. In Texas they pass the floodlit site of a grisly discovery: a slimy pit from which body after body is being removed by workers cocooned in eerie airtight suits. Told by a state
trooper to keep moving ("Don't stop for nothing or nobody," he says ominously), they pull into the rundown Last Chance Gas Station. A rangy stranger (Viggo Mortensen) looking for a lift directs them to a shortcut, but they're reluctant to give him a ride. An awkward situation becomes terrifying
when the gas station's crazy owner threatens them with a shotgun and the stranger fights him ...