《冲线》讲述的是：This fine mixture of romance, humor, tears, and exciting action sequences stars Kevin Costner and David Grant as brothers struggling to win the Hell of the West — a world-class cycling competition — while trying to regain the respect and affection they once shared.  Training and racing together they each fear the congenital ailment that struck down their father could suddenly strike one of them.  American Flyers is a spirit-soaring spectacle.