January 1942 and the Japanese war machine thunders across South East Asia. In its path, on the island of New Britain (now Papua New Guinea), lies a tiny Catholic mission where a handful of nuns and Australian nurses take refuge with wounded Australian soldiers. Sisters of War is inspired by the true story of two of these extraordinary women, Lorna Whyte, an army nurse, and Sister Berenice Twohill, a Catholic nun. Although they were two very different women, their friendship would survive the perilous events that followed. Adapted from wartime diaries and interviews with Lorna, Sister Berenice and others who witnessed these events, this is the incredible story of their captivity, their extraordinary courage and their will to survive.