The incredible true story of how one Soviet Engineer and his CIA handler risked their lives to help bring an end to the Cold War. BAFTA award winner Amma Asante (A Way of Life, Belle, A United Kingdom) will bring a fresh and multi-layered perspective to the Cold War genre, combining the world of analog spy craft with an intimate look at the spies’ personal lives. It is produced by legendary Academy Award® and Golden Globe winner Akiva Goldsman (Mr & Mrs Smith, Lone Survivor, I Am Legend).

Brad Reid is a fresh arrival at the Moscow station of the CIA when he’s approached by Soviet engineer Adolf Tolkachev (Mikkelsen). Ignoring the advice from his bosses that Tolkachev is an obvious KGB ‘dangle’, Reid develops a bond and unique friendship with the Russian, who seemingly only wants to help his family escape the corruption within the Soviet Union. Reid’s faith in Tolkachev is rewarded when he hands over a treasure trove of military secrets, obtained using classic Cold War spy craft. It earns Tolkachev the nickname ‘The Billion Dollar Spy’ and alters the balance of power between East and West. But their success in evading the KGB comes at great personal cost to both men, and their marriages to wives Tina and Natasha, all struggling with the daily paranoia of being caught. Then one day a shocking betrayal puts them all in grave danger...