Spirited New Yorker Linda Voss goes to work for international lawyer and secret Office of Strategic Services operative Ed Leland just before World War II. As they fall in love, the United States enters the fight against Hitler, and Linda volunteers to work for Ed spying undercover behind Nazi lines. Assigned to uncover information about a German bomb, Linda also has personal motives to fulfill: discovering the fate of her Jewish family members in Berlin.
An American journalist arrives in Berlin just after the end of World War Two. He becomes involved in a murder mystery surrounding a dead GI who washes up at a lakeside mansion during the Potsdam negotiations between the Allied powers. Soon his investigation connects with his search for his married pre-war German lover.
When the CIA discovers one of its agents leaked information that cost more than 100 people their lives, veteran operative Henry Pelham is assigned to root out the mole with his former lover and colleague Celia Harrison.
A German intelligence officer investigates a prostitute's killing in Warsaw during World War II. He lands on three major Nazi generals as suspects, two of whom are also involved in a plot to kill Adolf Hitler.
Cross is an old hand at the CIA who often teams up with Frenchman Jean “Scorpio” Laurier, a gifted freelance operative. After their last mission together, the CIA orders Scorpio to eliminate Cross, leaving him no choice but to obey.