In 1940, Jersey teenager Michael Le Breton's peaceful life is shattered by the German invasion of the Channel Islands. His older brother, Jacques, draws him into the island's resistance efforts, but their family faces its greatest danger when they decide to hide Konstantin, an escaped Russian prisoner. Konstantin, one of many Eastern Europeans brought to Jersey as slave labour, is deeply scarred by his brutal experiences, making his relationship with the family tense and volatile.

As Michael navigates these dangers, the situation becomes even more precarious when his twin sister, Amy, befriends a disillusioned German soldier. Michael is forced to confront the harsh realities of war. What unfolds changes his life forever.