Litvinenko S1, E3

Determined detectives work to prove who was responsible for the death of Alexander Litvinenko, in one of the most complex and dangerous investigations in the history of the Metropolitan Police.

Cast:Mark Bonnar , Margarita Levieva , Richard Pepper , Temirlan Blaev , Mark Ivanir , Neil Maskell , Barry Sloane , Kayla Meikle , Daniel Ryan , Kirsten Foster , Marcus Onilude , Sam Troughton , Estella Daniels , Dan Renton Skinner , Nikolai Tsankov , David Tennant , Sarah Naudi , Ian Conningham