Andre You was a daring man. By the age of twenty, the Anglo-Frenchman had survived a shipwreck and years of covert action in France, acting with the aim of undermining German supplies. Returning to Britain, he was recruited by the SOE to parachute behind enemy lines on June 5, 1944, with the aim of uniting the resistance forces in Brittany and weakening the local German troops during the Allied invasion. Despite the difficulties of his mission - he missed his landing site, his secret base became a field of fierce battle, and a group of Cossacks tried to track him down - he knew that thousands of lives depended on his success or failure.