For six college students carpooling cross-country, a seemingly mundane tire blow-out is the beginning of a grueling fight for survival. Finding themselves under siege by a mysterious, merciless sniper, an agonizing game of cat-and-mouse ensues - the sniper does not approach to finish them off, he simply waits, silent, patient, drawing them into a suspenseful battle of wits. By nightfall, what was once an unassuming stretch of country road has become a smoking battlefield of wrecked cars, strewn corpses, hide-and-seek shootouts and everyone-for-themselves desperation.