A passionate 26-year old BMX dirt jumper, Phineas Cooper, gets the chance of a lifetime to compete at the regional level to qualify for nationals. But his pursuit of triumph sours with a crash that knocks him out of commission. Determined to get back on track for the next major competition, he undergoes physical therapy for a couple months. In the meantime, he is ordered by court to complete community service for many unpaid citations for reckless street riding. He is forced to volunteer at a local youth center for at-risk teenage boys, and meets Jordin Riley, a beautiful humanitarian. To impress her, Phin decides to sign up for mentorship and handpicks one of the toughest boys named Blue Espinosa, a 14-year old whose mother is a heroin addict, and whose father was gunned down. As Phin takes Blue under his wings, he and his friends lead him on adventures of riding dirt trails, big jumps and cityscapes..

故事发生在1860年左右,经过鸦片战争沉重打击后灾难深重的中国.英国奸商林赛男爵为了牟取暴利,与腐败的清朝总督冯周勾结,大肆向中国走私鸦片. 正直的英国总督爱德华子爵试图阻止他们的犯罪行为,却被林赛男爵和冯周秘密杀害....

当警察们面对一宗发展迅速的案件, 他们让一个年轻，独立而具备神秘力量的警察约法纳来负责此案。他与诱人的邓娜合作来搜捕残酷和致命的' 五枚子弹帮' 。他们老大是可怕的马萨, 他和约法纳一样，也是魔法高手。马萨只会被被猛虎魔剑击败, 那是一把充满自然力量, 和美善力量的上古魔法剑。在匪盗捣乱城市之前，约法纳必须找到猛虎魔剑, 把马萨绳之以法。最后他们两个决一死战，只有一个能生存下去

这是一个小木寺俗家弟子释然，和青梅竹马的姑娘喜乐，骑着小马游走江湖的故事。　　一场大饥荒，6岁的孤儿随饥民逃荒到小木寺，冲突中只有她在夹缝中挤进了小木寺被小木寺收留，方丈给她起名为喜乐，喜乐成了大家的愿望。释然儿时看到一场在长安城妓院楼顶上对决武林盟主的盛事，却以苦当派掌门人虽然夺得盟主，被困楼顶饿死的荒诞结局而收场。江湖风云突变，人心自此大乱。　　十八岁那年，释然的师父（万仓 饰）预感小木寺将有一劫，秘密安排释然（张天阳 饰）改名长安还俗下山，去找寻一名铸剑老人（王连生 饰）。机缘巧合下，释然得到了老头赠送的当世奇兵，并用它夺取了武林盟主的称号。虽然在雪邦做了盟主，但在释然心里，霸主的位子比不上一个喜乐（何泓姗 饰）有意思。而万永（金亮 饰）一心想成为武林霸主并劫持喜乐以挟释然交出盟主之位，释然最终放弃盟主之位与喜乐归隐山林。 万永当初一手操办了雪邦比武，然而这究竟是万永在操控着江湖还是被江湖所操控？一切江湖动荡，好似一盘棋局，人如棋子，岂能由己？　　世间的事，只是人类的一个游戏，而人类，是上天的一个游戏。　　电影根据韩寒武侠题材小说《长安乱》改编。