The actor and his former pilot brother present a celebration of the Royal Air Force's centenary, taking to the skies in iconic planes from the First World War to the present day. They also meet service personnel from throughout the RAF's history, including a veteran of the Battle of Britain, former female members of the Air Transport Auxiliary, crew members who had the responsibility of dropping the atom bomb, modern-day Typhoon fighter crews, and the last pilot to be involved in a dogfight.