Line of Duty | trailers seasons 1 & 2

The first series follows DS Steve Arnott (Martin Compston) and DC Kate Fleming (Vicky McClure) as they lead an investigation into the corrupt actions of DCI Tony Gates (Lennie James). The second series follows Superintendent Ted Hastings (Adrian Dunbar), DS Steve Arnott (Martin Compston) and DC Kate Fleming (Vicky McClure) as they lead an investigation into the corrupt actions of DI Lindsay Denton (Keeley Hawes).