Using breakthrough flesh-regeneration technology, a biotech firm creates a set of living dinosaurs. But when the creatures escape their museum exhibit and terrorize Los Angeles, a former firefighter must rescue his teenage daughter from the chaos brought on by the Age of Dinosaurs

There is an old wives tale that you should hold your breath when passing by a cemetery because an evil spirit rejected by both heaven and hell can get inside of you when you inhale. Somewhere in a carload of college kids on holiday doesn't follow the rules when driving by a graveyard, allowing a spirit of a recently executed serial killer to get inside him/her to begin a killing spree of body-jumping carnage.