Jed Mercurio\'s crime drama stars Adrian Dunbar, Keeley Hawes, Vicky McClure, Kelly Macdonald and more… Since it debuted in 2012, Line of Duty has become one of the biggest shows on British TV – it\'s been voted the U.K.\'s third greatest crime drama of all time behind Inspector Morse and Foyle\'s War. Each series of Line of Duty follows AC-12, a police anti-corruption unit comprising Superintendent Ted Hastings (Adrian Dunbar), D.C. Kate Fleming (Vicky McClure), and D.S. Steve Arnott (Martin Compston), as they investigate a different senior officer suspected of improper conduct. Series one centers on their investigation into the working practices of D.C.I. Tony Gates (Lennie James), an award-winning officer whose success rate seems too good to be true. Seriesn one also features Gina McKee and Neil Morrissey. Then, series two introduces Keeley Hawes as D.C.I. Lindsay Denton, an officer trying to prove she hasn\'t taken a bribe after all her fellow officers are killed in a botched operation.