拉斯维加斯，世界著名的赌城，多少人成就梦想以及梦想破灭之地。然而，除了灯红酒绿的赌场与香飘四处的酒精之外，这里的摩托车冠军赛也极大地吸引着欲以此成就梦想的众多年轻人。激情四溢的卡莱尔兄弟便是此项赛事的众多拥趸之中的一双。然而，最近他们却遇到了相当的麻烦。而困难不仅仅在赛场上，父亲的不幸离世令兄弟二人整日与悲痛做伴，面对即将到来的摩托车冠军赛已是激情不再。 　　还好，此时有众多好友给予俩兄弟莫大的支持和帮助。哥俩终于克服了生理和心理上的重重阻力和困难，同心协力在这场名为“Suppercross www xiguatv8.com(超越)”的摩托车比赛中获得了胜利。但荣誉在手的兄弟俩却在随后的生活中产生了种种的分歧：在对待生活以及事业的选择甚至连俩人沟通的方式上都有着截然不同的走势……A motorcycle saga that chronicles the personal journey of two brothers who overcome emotional and physical obstacles to achieve success in the competitive world of Supercross racing. The brothers' conflicts are magnified by their different life choices and their decision to become competitors and rivals. KC Carlyle is a more cautious rider than his younger brother Trip, who has more natural talent but takes too many risks. When KC gets an all-expenses paid factory--corporate sponsored--ride, a rift forms between the two brothers. Trip is forced to go at it alone, becoming a privateer--a rider without a sponsor. But when a career threatening crash ends Trip's Supercross career, he and KC realize that they must put aside their conflicts, and work together to help KC defeat the world's greatest Supercross champions.