From the moment the first machine gun rang out over the Western Front, one thing was clear: mankind's military technology had wildly surpassed its medical capabilities. The war caused carnage on an industrial scale, and the nature of trench warfare meant that thousands sustained facial injuries. In 'The Facemaker', award-winning historian Lindsey Fitzharris tells the true story of the pioneering plastic surgeon Harold Gillies, who dedicated himself to restoring the faces of a brutalized generation.