13 Rue Madeleine (1946)

As the US prepares for D-Day, a secret branch of the Allied military begins its disinformation campaign. U.S. Military Intelligence does not know that a Nazi mole has infiltrated its ranks. Novice American spy Jeff Lassiter inadvertently tells the mole, who uses the alias "Bill O'Connell," that the Americans intend to invade Normandy, not Holland, as the enemies suspect. As O'Connell travels to France, Bob Sharkey, the head of Military Intelligence, parachutes into that same country to capture a Nazi sympathizer who has the keys to an Axis rocket launcher. Unfortunately for Sharkey, however, O'Connell beats him there and demands to know the Allies' true strategy.

A group of Allied agents working undercover in occupied Paris struggle to infiltrate German files in order to discover the location of a rocket launching site before the D-Day invasion. However, in their midst a traitor lurks.