Paris, 1944. With France under Nazi occupation, General Quade entrusts an important mission to Furstenwerth, the commander of the Wermacht: to secretly transmit secret documents to the Allies. While carrying out this mission, the commander falls under the spell of a young French resistance fighter, Yvonne. He is discovered and arrested by the Gestapo. Yvonne and her group of resistance fighters will do everything to free him.