1938年,武汉沦陷(xiàn )前夕,传奇狙击手左英(yīng )杰率小队拼死阻击,一(yī )战成名。不料事后却遭(zāo )小人构陷含冤入狱,女(nǚ )特工沈雪在狱中找到(dào )昔日战场英雄并授予(yǔ )一项绝密刺杀任务。左(zuǒ )英杰临危受命,不料行(háng )动伊始便遭遇(yù )宿敌日(rì )军王牌狙击手(shǒu )下川国(guó )正伏击,身陷险(xiǎn )境。惊天(tiān )阴谋逐渐浮出(chū )水面,国(guó )恨家仇、狭路(lù )相逢,巅(diān )峰对决一触即(jí )发……