The Greatest Line of Duty: Complete Series One to Five

All the episodes from the first five series of the British crime drama starring Martin Compston, Vicky McClure and Adrian Dunbar. As punishment for a previous failure, Detective Sergeant Steve Arnott (Compston) is transferred to AC-12, a unit assigned to investigate corruption within the police force. Working with Detective Constable Kate Fleming (McClure), he quickly finds himself immersed in his new job.