When the investigation fails to bring about extradition of Lugovoy and Kovtun, Marina begins an 8 year battle to seek justice for her husband's murder.
November, 2006. Two Police officers are summoned to a hospital in London to interview a man named Alexander Litvinenko, who claims to have been poisoned.
Watched by the world, the Metropolitan Police follow the radioactive trail of Polonium across London in search of Litvinenko's killers.
A team of detectives, led by Brian Tarpey travel to Moscow to interview Lugovoy and Kovtun, now the prime suspects behind Litvinenko's murder.