'He looked up at the sky, crystal blue and cloudless ... he closed his eyes, put the whistle to his lips and blew.' The first of July 1916 and in the French countryside tens of thousands of doomed British soldiers are being killed and wounded as the bloody Battle of the Somme begins. Captain Edward Harris, vainly encouraging his men over the top and headlong into the murderous German machine guns, is badly wounded. Crawling to a shell hole for cover, he lies helpless as the carnage continues around him. October 2015 and Tom Harris has no interest in the First World War. For him it's a conflict from another age. But during a visit to the battlefields he becomes fascinated by a headstone in a British war cemetery showing his namesake. Desperate to learn more Tom begins to delve into the past where he discovers ordinary men consumed by extraordinary times. And in doing so he unearths a remarkable and moving story of loss, despair, hope and redemption.