Tehran S01e09

This is the gripping history of the Nazi-sponsored attempt to infiltrate the 1943 wartime Allied conference in Tehran and assassinate the "Big Three" leaders: Franklin Roosevelt, Winston Churchill, and Joseph Stalin. It shows how close the plot came to success, and how the removal of any one or more of the Allied chiefs might have significantly altered the future course of the Second World War.

FRONTLINE presents Thomas Erdbrink's rare and fascinating account in a 4-hour journey into the private world of Iran, revealing the people and the country in a way never before seen on U.S. TV.