D-Day 1944. The fourth in the French Resistance series

As the preparations for the invasion of France in June 1944 move into high gear, the French Resistance is required to increase activities against the German infrastructure. Leading her group into repeated action is Liane de Gruchy, the most wanted woman in France, commanded by her controller and lover Major John Barron of the SIS. As the day approaches, they, together with several other groups, are ordered to a remote area in southern France to create and defend an airfield into which the Allies hope to fly men and munitions to coincide with the invasion and make a third front behind the German lines.