The Nazi Conspiracy by Brad Meltzer and Josh Mensch centers on an alleged plot by the Germans during World War II to kill or kidnap the three major world leaders representing the Allied powers: American president Franklin D. Roosevelt, British prime minister Winston Churchill and premier of the Soviet Union Joseph Stalin.

The plan, known as Operation Long Jump (Operation Rösselsprung in German) was meant to be carried out during the Tehran Conference, also known as Eureka, when the three met secretly in Iran in November of 1943 to discuss the particulars of winning the war. The meeting's location was chosen mainly for its strategic advantages. At the time, Iran was occupied by both the Soviets and Britain, and it served as a shipping route between the United States and USSR. Though Iran outwardly showed support for the Germans, it had technically remained neutral in the war, and while German spy activity was prevalent in Tehran, the Soviets had bolstered their own ...