Danny and Frederica narrowly escape back into the American zone, where Hank is waiting for them at Frederica's apartment and has unexpectedly befriended her neighbor and Danny's friend, Herr Stieber (O.E. Hasse), a self-professed "Soviet spy", but in fact he is working for the Allies and providing the Soviets with false information. Danny falls in love with Frederica, despite learning from Hank that she lied to him about the backgrounds of her dead husband and father. When Danny receives notice that he is due to rotate back to the United States soon, he arranges to marry Frederica. However, Stieber suspects duplicity in Frederica and intercepts a letter she has written to her German lover living in the United States, revealing that she intends to divorce Danny back in the U.S. as soon as she legally can, and see her lover behind his back until that happens.