在这部1917剧情/战争片中,第一次世界大战进入最激烈之际，两名年轻的英国士兵斯科菲尔德（乔治·麦凯 饰）和布雷克（迪恩·查尔斯·查普曼 饰）受到指派，执行一场看似不可能完成的任务：他们必须和时间赛跑，冒险进入敌区传递一个重要情报，试图阻止一场对1600名士兵的致命攻击，这其中包括布雷克的亲兄弟。
Schofield and Blake, two young British soldiers during the First World War, are given a seemingly impossible mission. With time against them, they must deliver a message, deep in enemy territory, that will stop their own men, and Blake's own brother, walking straight into a deadly trap.
