A love story played out against a backdrop of political and religious upheaval. At the end of the Second World War, 38 year-old career soldier Gian Singh resigns his commission with the British Indian Army and returns to his childhood village, near the border with Pakistan. Haunted by the memories of war, he seeks a quiet life of farming, solitude and prayer. His peace is shattered in August 1947, however, when India is granted independence. A new border is drawn between Hindu-dominated India and Muslim-dominated Pakistan, and the region is torn apart by massacres fueled by ancient animosities. In the midst of one such massacre, Gian finds Naseem, a 17-year-old Muslim girl, and takes her under his protection. They gradually find themselves drawn to each other but, as their remarkable story plays out, the obstacles to their happiness prove all but insurmountable.

伊桑（杰昆·菲尼克斯 Joaquin Phoenix 饰）和妻子格蕾丝（詹妮弗·康纳利 Jennifer Connelly 饰）永远都不会想到，他们深爱的儿子乔伊（Sean Curley 饰）竟然会先他们一步离开人世，然而，当那辆飞驰的汽车撞倒乔伊的那一刻，所发生的一切又是那么的真实和无法改变。                                                                      　　在此之前，律师德怀特（马克·鲁法洛 Mark Ruffalo 饰）正享受着和儿子卢卡斯（艾迪·阿尔德森 Eddie Alderson 饰）之间难得的愉快夜晚，再过几个小时，德怀特就要将卢卡斯送回前妻鲁斯（米拉·索维诺 Mira Sorvino 饰）的身边了。然而，当德怀特驾驶着他的汽车，当强烈的撞击感从车头传递到德怀特的身体上时，他明白他的命运将就此改变。在如此紧要的关头，许多的念头飞速的划过德怀特的脑海，但他的身体做出了最糟糕的选择，那就是猛踩油门，逃之夭夭。

　　丹•埃文斯（克里斯汀·贝尔 饰）在南北战争断了一条腿，得到政府小小的补偿，他和妻子艾丽丝还有两个儿子在亚利桑那的农场居住。然而，恶劣的气候和腐败之风却让丹负债累累，一些人想在建造铁路上获得暴利，他们想尽办法赶走埃文斯一家，家人开始质疑丹的能力。
　　就在此时，西部声名狼藉罪犯 宾•维德（罗素·克劳 饰）被捕获。他曾带领着副手查理•普林斯（本·福斯特 饰）和一帮手下驰骋荒野，劫得大量财物并犯下无数命案。被逮捕的宾•维德将由押送队带到康坦森镇，搭上火车他会被送到亚利桑那州的犹马镇，在那里接受联邦法庭的公开审判。
　　为了拯救农场和家人，丹自愿参加了押送队，但即使被束缚，宾·维德仍然是危险的。在旅程中，押送队不断折损。当火车到来之时，一切会发生什么改变？