Police anti-corruption unit AC12 return for another investigation. Sergeant Danny Waldron and his armed response team shoot dead a hardened criminal, but cracks soon appear in their story. Are they hiding a cold-blooded murder?
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One Step Closer To The Grave
Line of Duty Finale
The hit police corruption drama from the makers of Bodyguard.
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Find out more about Lisa McQueen and John Corbett as they burst into the new series.