The legendary U-Boat ace Otto Kretschmer was branded "the wolf of the Atlantic," and for good reason. In his dramatic wartime career he sank ship after ship, sowing terror among Allied convoys and dismay in those charged with their protection. Kretschmer was a daring officer who favored bringing his U-Boat into the heart of the convoy and destroying it from within. He earned himself a tremendous reputation before his capture in March 1941, and The Golden Horseshoe makes it clear why.