Growing up in Germany, Freddy Mayer witnessed the Nazis' rise to power. When he was sixteen, his family made the decision to flee to the United States - they were among the last German Jews to escape, in 1938. In America, Freddy tried enlisting the day after Pearl Harbor, only to be rejected as an "enemy alien" because he was German. He was soon recruited to the OSS, the country's first spy outfit before the CIA. Freddy, joined by Dutch Jewish refugee Hans Wynberg and Nazi defector Franz Weber, parachuted into Austria as the leader of Operation Greenup, meant to deter Hitler's last stand. He posed as a Nazi officer and a French POW for months, dispatching reports to the OSS via Hans, holed up with a radio in a nearby attic. The reports contained a gold mine of information, provided key intelligence about the Battle of the Bulge, and allowed the Allies to bomb twenty Nazi trains. On the verge of the Allied victory, Freddy was captured by the Gestapo and tortured and waterboarded for days. Remarkably, he persuaded the region's Nazi commander to surrender, completing one of the most successful OSS missions of the war. Based on years of research and interviews with Mayer himself, whom the author was able to meet only months before his death at the age of ninety-four, Return to the Reich is an eye-opening, unforgettable narrative of World War II heroism.

Until recently, historians believed America gave asylum only to key Nazi scientists after World War II, along with some less famous perpetrators who managed to sneak in and who eventually were exposed by Nazi hunters. But the truth is much worse, and has been covered up for decades: the CIA and FBI brought thousands of perpetrators to America as possible assets against their new Cold War enemies. When the Justice Department finally investigated and learned the truth, the results were classified and buried. Using the dramatic story of one former perpetrator who settled in New Jersey, conned the CIA into hiring him, and begged for the agency's support when his wartime identity emerged, Eric Lichtblau tells the full, shocking story of how America became a refuge for hundreds of postwar Nazis.