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Episode 1

Litvinenko

Detectives are summoned to a hospital to interview an ex-Russian spy who claims to have been poisoned.

Monday, 9th Oct 9.00pm

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Episode 1

Detectives are summoned to a hospital to interview an ex-Russian spy who claims to have been poisoned. 47mins

Monday, 9th Oct 9.00pm

Episode 2

Watched by the world, the Metropolitan Police follow the radioactive trail of polonium across London, leading them to their main suspects, Lugovoy and Kovtun. 46mins

Monday, 9th Oct 9.05pm

Episode 3

Part of the investigative team travel to Moscow, to do interviews with Russia's "help". 46mins

Monday, 9th Oct 9.10pm

Episode 4

After waiting eight years, the Prime Minister orders a public inquiry. 46mins

Monday, 9th Oct 9.15pm