Pan Am flight attendant Natalie is the only thing that stands between the KGB and their attempt to steal submarine secrets from the United States Navy and alter the course of the Cold War. She and her naval submarine suitor, Max, find their budding romance plunged into the international intrigue of the 1970s when she discovers her roommate, Mia, is an East German spying for the Soviets. To complicate matters, Max’s submarine mate, Peter, has fallen in love with Mia. When Mia is ordered to turn Peter into a Russian spy, the result is a sexy espionage thriller that pits the creativity of the CIA against the treachery of the KGB.