France, May 1940. In a small village on the Belgian border, behind the immense forest of Arden. Unlike other people who have fled in fear of a German invasion, Gustav decided to stay with her two small children, Camille, a young teenager and Etienne, a little boy. One fine morning landed a group of Senegalese soldiers who got lost. The reactions of unsuspecting Gustave not stand long for human feelings and imagination of the young generation ...