June 1940. La France collapses and signs the armistice. In the midst of the chaos, one man refuses to give in. Alone against everyone, this unknown general escapes to London to save what remains of a dream: freedom. Without an army, without support, without hope. But with a crazy conviction: France, his France, has not laid down its arms. He attempts a final gamble: to convince the world that the Battle of France is neither finished nor lost. Reality is stubborn and proves him wrong. But little by little, shadow resistance fighters, rebellious high school students, and determined soldiers rise up around him in England, in France, and in Africa. Their faith, their audacity, their rage for freedom defy History, which nevertheless seemed written in advance.