At one of the most dangerous moments in the Cold War, an ordinary 5th grade girl from Maine wrote to the leader of the Soviet Union with a simple plea for peace. When he wrote back with an invitation to visit the Soviet Union in the summer of 1982, it became an international news story and one of the most improbable peace missions of the era. Mo tells the story of the “Littlest Diplomat” and how she became a powerful symbol of shared humanity on both sides of the iron curtain. Guests include childhood friends of Samantha, her Russian “summer camp buddy” and actor Robert Wagner.