In 1939, 12-year-old Sasha, inspired by the words of her father, the celebrated journalist Louis Jullian, feels she must find a way to stand up to Nazi terror, in the shadow of a world at war. Hitler's blitzkrieg results in the surrender of France and Sasha and her family flee Paris-learning first hand the brutality of war-and how acts of resistance, no matter how small, can make a difference. In their occupied country, fraternising with the enemy is frowned on, but necessary. It only gets more complicated when she meets Dieter, a member of the Hitler Youth and the son of her father's best friend. How can Sasha know who to trust when the enemy becomes a friend?