Following on from the BAFTA award-winning The Killing; It's been two years since former detective Sarah Lund (Sofie Grabol) was 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 at Copenhagen police HQ, Lennart Brix calls her back in to assist with the investigation. Initially reluctant, Lund soon changes her mind as she becomes engrossed with the case. As the police grapple with what few clues they possess, newly appointed Minister for Justice Thomas Buch (Nicolas Bro) strives to oversee some intricate political negotiations between parliamentary parties over the introduction of a series of controversial new anti-terrorism laws. At the same time, soldier Jens Peter Raben (Ken Vedsegaard) awaits release from the psychiatric ward he was committed to following a nervous breakdown. Over the course of 10 gripping episodes, the worlds of crime, politics and the military become increasingly intertwined and as the case progresses, Lund's mission becomes a race against time to find the culprit and prevent further killings.