Today's story is the wartime tale of a well-known athlete, an Olympian who ran both the 100 and 220 yard dash, within one tenth of a second of the record. The story begins in the ancient Greek town of Marathon, where two Nazi officers stand chatting on a street corner. Unbeknownst to them, the man shuffling in the shadows, posing as the town halfwit, is an undercover lieutenant of the American army - and also an old rival of one of the Nazis, from the 1936 Olympic Games at Berlin...