Series 1 joins Sarah Lund on what is supposed to be her final day as a detective with the Copenhagen Police department. She is all-set to immigrate to Sweden with her fiance, when a 19-year-old girl is found raped and brutally murdered.;A local politician, Troels Hartmann, is in the middle of a hard-fought election campaign to become the new mayor of Copenhagen when suddenly, evidence links city hall to the murder. Over the course of twenty episodes, each a day in the investigation, suspect upon suspect is sought out as violence and political pressures cast their shadows over the hunt for the killer.;Two years on, and Series 2 finds Lund stripped of her investigative role and transferred to a low-key job in the country, but when the body of a female lawyer is found murdered in macabre and puzzling circumstances, Lund's former boss calls her back to assist with the investigation. Initially reluctant, Lund soon changes her mind as she becomes engrossed with the case... Over the course of 10 gripping episodes, the worlds of crime, politics and the military become increasingly tangled and, as the case progresses, Lund's mission becomes a race against time to find the culprit and prevent further killings...;Now, at long last, Detective Inspector Sarah Lund returns in Series 3, the long-awaited third, and final part of the trilogy. The financial crisis is raging and the number of bankruptcies and repossessions is on the rise, but Lund has a newfound sense of peace, in the form of a new job, a new home and the recognition of achieving 25 years of service in the Police Force.