You’ll want to get all your police acronyms in a row for this smash-hit BBC police drama from Jed Mercurio. Line of Duty steps inside the murky world of AC-12, an anti-corruption police investigation unit where nothing is as it seems. Martin Compston and Vicky McClure play the detectives responsible for busting crime rings operating from within the police force: a mission that often takes them undercover – with the constant risk of being exposed. Finishing on series six, this is the twisty thriller gift that keeps on giving.

Watch Line of Duty on BBC iPlayer.

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