弗兰克·卡斯特（托马斯·简 Thomas Jane 饰）的生命中，绝大部分时间都在于死神赛跑。早年在海军陆战队服役，退役后又进入FBI。在枪炮火光中生活了多年之后，弗兰克不愿再整日收到死亡的威胁，家人整日为他担惊受怕。所以，他决定提前退休与妻儿享受平静的生活。可是，在最后的一次任务中，却因意外使一名无辜青年死亡。而这名青年的父亲却是坦帕市的大富商霍华德·桑特（约翰·特拉沃塔 John Travolta 饰）。为了给儿子报仇，霍华德向黑市发出了对弗兰克一家的绞杀令。不过弗兰克却侥幸在这场浩劫中存活下来。为了报仇，弗兰克不再寄望于法制，而是全副武装向霍华德发起挑战。面对霍华德组建的私人军队，弗兰克凭一己之力将如何应对？Special agent Frank Castle had it all: A loving family, a great life, and an adventurous job. But when his life is taken away from him by a ruthless criminal and his associates, Frank has become reborn. Now serving as judge, jury, and executioner, he's a new kind of vigilante out to wage a one man war against those who have done him wrong.