High Quality Content by WIKIPEDIA articles! Island at War is a British television series that tells the story of the German Occupation of the Channel Islands. It primarily focuses on three local families: the upper class Dorrs, the middle class Mahys and the working class Jonases, and four German officers. The fictional island of St. Gregory serves as a stand-in for the real-life islands Jersey and Guernsey, and the story is compiled from the events on both islands.