The last thing Eddie Mills (Larry Clarke) wants to do is go home to deal with his dying Dad (Brian Dennehy). But the Catholic guilt gnaws at him, and he returns home to his crazy family, an overbearing step-mother (Leslie Ann Warren) , and his bear of a father. Once there, Eddie is confronted with a revelation that forces him to deal with the past he has always avoided.

特工布莱恩(利亚姆·尼森 饰)深爱着女儿凯姆(麦琪·格雷斯饰)，却由于工作的原因难以给予她日常的父爱，失望的妻子带着女儿改嫁他人。退休后，见识过太多黑暗势力的布莱恩生怕女儿受到伤害，费尽心力的守护她却也因此带给凯姆种种束缚，引发了父女间的矛盾。　　17岁生日后，凯姆执意和朋友前往巴黎旅行，无奈的布莱恩只好答应，不成想灾难正等着年轻的凯姆。在电话里亲耳听到女儿被绑架后，布莱恩强忍内心的痛苦只身踏上了营救女儿的征程，而他只有96个小时。