Long before there was a James Bond or a CIA, the brave men and women of the Office of Strategic Services worked secretly behind the scenes during WWII, playing a key role in the Allied victory. The agency's legendary director, Major General 'Wild Bill' Donovan, recruited only the best and his expertly trained spies were at war long before D-Day. Until now, their gripping real-life missions have remained as classified as their identities. Patrick O'Donnell has tracked down and interviewed over 300 former OSS and relates their incredible stories for the first time.