A princess of Russia, Ilona desires to flout tradition and her parents' wishes, and to marry an American journalist instead of a Russian prince
Tatiana, a headstrong dancer, provokes the hatred of her husband, a commander of the secret police, when she falls in love with an English admirer
John Hayman and Natasha Brusilova, his fiancee, become resistance fighters against the Nazis, while Svetlana Nej tries to convince the SS officer she loves to turn against Hitler
When the Soviet spy, Gregory Nej, comes to America on a secret mission, he falls in love with Felicity Hayman and endangers both their lives
When lovely American heiress Diana Hayman disappears on her honeymoon in Russia, her uncle, CIA agent John Hayman suspects that lethal KGB operative Anna Ragosina is baiting a trap for him