After the success of such offensives as D-Day & the Soviet march to the west, the Allies made the mistaken assumption that the Third Reich was finished. Then came the autumn of 1944. Hitler rallied with surprising force, driving the Allies back toward Paris. With a long war of attrition & no counterintelligence to speak of, the OSS set out to accomplish what the UK deemed impossible: to penetrate Nazi Germany with a network of spies. Locked away for over 30 years in secret CIA files, here's the true story of how American agents managed to infiltrate the Third Reich & shorten the war by months. Based on interviews with surviving operatives & filled with colorful profiles, this book brings to life one of the greatest counterintelligence coups in history--a heroic mission that established the USA as a superpower in international espionage.