In late May 1916, in the small French village of Villeret, the Germans executed four soldiers: two British and two Irish. They had been hiding behind enemy lines since August 1914, disguised as local farm labourers. Who were they? Who hid them? And who betrayed them to the Germans? This is the story of Private Robert Digby, 1stBattalion, The Hampshire Regiment, one of the Villeret Four.