一场火车对撞的惨剧夺去131名乘客的性命，大卫•杜恩（Bruce Willis 布鲁斯•威利斯 饰）奇迹般地成为这场灾难过后的唯一幸存者，且浑身上下毫发无伤。在他参加遇难者追悼会之后，他在车窗上发现一张神秘便条，写道：“你这一生生过几次病？” 　　不久，一个名叫伊利亚•普莱斯（Samuel L. Jackson 塞缪尔•杰克逊 饰）的黑人出现在大卫面前。和大卫不同的是，伊利亚天生手脚残废，脆弱不堪。喜爱漫画的伊利亚认定大卫就是书中那种具有超自然能力的超人。懵懂的大卫开始在伊利亚的引导下认识自身的能力……This suspense thriller unfolds as the audience is introduced to David Dunn. Not only is he the sole survivor of a horrific train-crash that killed 131 people he doesn't have a scratch on him. Elijah Price is an obscure character who approaches Dunn with a seemingly far fetched theory behind it all.