The inmates of a German World War II prisoner of war camp conduct an espionage and sabotage campaign right under the noses of their warders.
Suspecting a security leak at Stalag 13, Gen. Burkhalter goes fishing with some false information and Col. Hogan falls for the bait. As a result, Burkhalter plants a spy among the prisoners to expose the guilty parties.
S2E15 26 min