In the pursuit of corruption, how far will they go to uncover the truth? Set in the fictional police anti-corruption unit AC-12, Line of Duty is a cat-and-mouse thriller that takes a probing look into modern policing and corruption. A multi-stranded investigation over five hour-long episodes, the drama features an all-star cast including Lennie James, Martin Compston, Vicky McClure, Adrian Dunbar, Neil Morrissey and Gina McKee. Run by zealous Superintendent Ted Hastings (Adrian Dunbar), AC-12’s target is the gifted, charismatic Detective Chief Inspector Tony Gates (Lennie James), whose unit returns the best crime figures on the force. Gates appears to be an exemplary police officer and hard-working family man. But Hastings is convinced Gates’ results are too good to be true.