Duel: A businessman finds himself pitted against an anonymous truck driver in a deadly game of cat and mouse on a Californian highway. Throttle: A faceless trucker is pitted against a tribe of motorcycle outlaws, in the simmering Nevada desert. Their battle is fought out on twenty miles of the most lonely road in the country, a place where the only thing worse than not knowing what you're up against, is slowing down.

Discusses the sport of motocross racing, inlcuding the equipment used, safety, and competitions.