Damien Lewis is a reporter from war, disaster, and conflict zones for BBC, CNN, and many other news organizations. He is the coauthor of two acclaimed memoirs about military working dogs, Sergeant Rex and It's All About Treo. His new book, The Dog Who Could Fly, is a deeply moving story of loyalty in the face of adversity. In this exclusive interview, Lewis shares stories about the World War II Airman and the Four-Legged Hero Who Flew at His Side.