At the height of the First World War, two young British soldiers, Schofield and Blake are given a seemingly impossible mission. In a race against time, they must cross enemy territory and deliver a message that will stop a deadly attack on hundreds of soldiers—Blake's own brother among them.
April 6th, 1917. As an infantry battalion assembles to wage war deep in enemy territory, two soldiers are assigned to race against time and deliver a message that will stop 1,600 men from walking straight into a deadly trap.