This week we have Overground Railroad, an episode of Cloak & Dagger, which tells the tale of OSS agents helping downed airmen escape from behind enemy lines. Cloak and Dagger was a short-lived radio series that told stories taken from the files of the Office of Strategic Services, the World War 2 forerunner of the CIA. It aired over NBC from May to October 1950. This episode originally aired on September 8, 1950.