In a documentary-style prologue, a group of O.S.S. agents are trained for WWII missions behind enemy lines. However, unbeknownst to their leaders Gibson and Sharkey, one of the agents is secretly a German spy. The leaders concoct a plan to feed the spy false information about the invasion of Europe, while the real agents head to France to locate a top-secret V-2 rocket depot. But the German agent outwits them, rejoining his own side with valuable intel.
13 Rue Madeleine
The director of a spy training program learns that one of his trainees is secretly a Nazi spy, and his decision to keep this information from authorities leads to devastating consequences.