In the hot summer of 1940 the German troops are just outside Paris, and numerous Parisians are leaving the city in a complete panic. Luce Ader, the sensitive daughter of a factory owner, decides somewhat belatedly to escape as well, together with her arrogant fiancé Bruno. Since they have a luxury automobile, the elderly society lady Daine Lessing decides to join them, and brings along the sensitive homosexual diplomat with her. The four of them finally leave the city in the hopelessly overloaded luxury car, only to get stuck in the middle of a seemingly endless column of refugees along a dusty road outside Paris...

May 1944, a group of French servicewomen and resistance fighters are enlisted into the British Special Operations Executive commando group under the command of Louise Desfontaines and her brother Pierre. Their mission, to rescue a British army geologist caught reconnoitering the beaches at Normandy.