Tae-gyu and Ji-hye get married. Two young lovers dreamed of the ideal married life which each had respect for each other. But honeymoon is soon over as each comes to realize that the other isn't quite what they thought. The liberal woman would like to talk of sex with frankness and ease. The conservative man can't get rid of his traditional sense of superiority. They end up hurting each other and decide to get a (limited) divorce. Once apart, they each begin to feel empty without the other, and realized they need to make an effort to understand each other.
李阳是消防大队的副队长，在一次事故中为救一个小男孩而错失了救自己女儿李想的机会。他的妻子张雪因此事久久不能释怀。二人的积怨越来越深，感情逐渐破裂。随着妻子的离开，想要挽回的李阳便和朋友宗源一路追赶妻子所乘的公交车，到了一处盘山公路。 因泥石流的缘故，公交车掉落悬崖内的一处矿洞。众人度过最艰难的求生时光，就在李阳等人一筹莫展的时候，救援队伍到达，终于不负努力逃离了险情。
未来世界，军方研制强化战士作战能力的药剂，却弄巧成拙导致大量民众沾染失败的实验制剂，并由此诞生了身体异于常人的生化人群体。军方兴建了庞大的隔离建筑，同时研发出对付生化人的最终武器，于是生化人组织派出女战士紫罗兰（Milla Jovovich 饰）潜入军方内部，用暴力方式将最终武器抢夺。紫罗兰难耐好奇，于路将最终武器包装打开之后发现里面居然是一名男童（Cameron Bright 饰），原来男童拥有可以消灭生化人的血液抗原，紫罗兰认为血液抗原亦可使生化人返回人类形态，不满组织的粗暴解决方式遂决意背叛，携自称“6号”的男童踏上了躲避军方和生化人组织的亡命之旅。而男童的背后，还有更大的秘密尚未揭开。
