This episode of The Last Voices of World War One draws on a rare archive of interviews recorded with British veterans, many speaking for the first time about 1917's battles at Arras and Passchendaele. Survivors describe the freezing winter of 1916 giving way to an assault at Arras that produced the highest daily casualty rate of the entire war, and airmen recall dogfighting Germany's Red Baron for control of the skies above the front. The bulk of the film follows the advance on Passchendaele village, where soldiers remember men and horses drowning in mud under constant shellfire, a battle that became shorthand for the horror of industrialized warfare. Archival footage and photographs are cut against the recorded voices, with narration providing military context between testimonies. Because most of these veterans were never interviewed again, their accounts of trench conditions, fear, and loss carry a directness rarely found in later reconstructions. The series treats their words as the primary record rather than illustration for a historian's narrative.