肖恩一路从洛杉矶开着一辆奔驰老爷车，前往佛罗里达去参加他姐姐的婚礼。他压根就没想到会碰上一位搭车者。从那时起，他的这次跨州旅行便成了一场闻末所闻、充满血腥味的恶梦……

While on a business trip, Tom Phillips is in a car accident caused by a reckless driver. Tom survives the accident with a severe chronic back injury which results in him not being able to continue with his current business. The Phillips' buy a motel in the California desert and Tom with his wife Peg and their two children, Tina and Jamie make the long road trip to their new home. As they approach their destination they are terrorized by reckless teenage hot-rodders looking for kicks.