During the German occupation of World War II, François, Eusèbe, and Lisa, three courageous children, embark on a secret adventure: resisting the Nazis in the heart of France. Through sabotage, hidden messages, and perilous escapes, they carry out clandestine actions right under the enemy's nose. Daring and friendship are their only weapons in the fight against injustice.

A Parisian trader who – after losing everything – is forced to take refuge on a country farm with his wife and child.