They are the Army's most elite top-secret strike force. But you won't hear about their heroics on the news, no headlines about them can appear in the papers, and no one—not even their families—can know who they are. First Special Forces Operational Detachment-D—Delta Force, America's supersecret counterterrorist unit. On paper they do not exist, but without them, our lives wouldn't be the same.

In this exclusive behind-the-scenes account, founding member Eric L. Haney, Command Sergeant Major, USA (ret.), takes you into the grueling selection and training process of Delta Force. From learning how to open a padlock with a soda can to rescuing a hijacked airplane, these men are masters of espionage and warfare. They are the anonymous heroes who protect us every day from threats we'll never know existed.