Powerful family drama focusing on a group of islanders adjusting to life under enemy occupation during the Second World War.A harrowing, sprawling mini-series produced by Masterpiece Theatre, "Island at War" chronicles three families - the upper-class Dorrs, the middle-class Mays and the working-class Jonases - as they endure five years under Nazi rule on St. Gregory island, a fictionalized location representing the Channel Islands.