Four-part drama based on the true story of the police investigation into the poisoning of the former Russian spy, Alexander Litvinenko. In November 2006, Litvinenko, a former KGB officer, lies dying in a London hospital - poisoned by a mysterious radioactive substance. As police are summoned to take his statement, Litvinenko points his finger directly at the Russian President, Vladimir Putin.

Litvinenko Series Guide

• View Season 1 Episodes