On Dec. 20, 1943, a young American fighter pilot named Charlie Brown was on his first World War II mission. Flying in the German skies, Brown’s B-17 bomber was shot and badly damaged. As Brown and his men desperately tried to escape enemy territory back to England, a German fighter plane pulled up to their tail. It seemed certain death. Instead of shooting the plane down, however, the German pilot, Franz Stigler, escorted the Americans to safety. In his new book, “A Higher Call: An Incredible True Story of Combat and Chivalry in the War-Torn Skies of World War II”, author Adam Makos describes the fateful wartime encounter, and how the two men found each other nearly 50 years later.