An American spy tries desperately to get out from behind the Iron Curtain with some crucial microfilm with the Communist security police close on his heels. An American spy tries desperately to get out from behind the Iron Curtain with some crucial microfilm with the Communist security police close on his heels. An American spy tries desperately to get out from behind the Iron Curtain with some crucial microfilm with the Communist security police close on his heels. An American spy tries desperately to get out from behind the Iron Curtain with some crucial microfilm with the Communist security police close on his heels.