Monday, November 3-Tuesday, November 4. Nanna's parents identify her body, and details of her sufferings are uncovered. Lund keeps postponing her departure, and tension arises between her and her new partner as they investigate the connection to city hall and a known criminal identified as the driver of the car Nanna was found in. Hartmann is faced with the choice of cooperating with the police or protecting his political future.

Tuesday, November 4-Wednesday, November 5: Lund and Meyer track down the driver, who ends up injured in the hospital, but also supplies an alibi. They refocus their investigation on Nanna's school. When the story of the connection to his campaign breaks, Hartmann finds himself in media turmoil. The Birk Larsens try to cope with their loss as they arrange the funeral.

Wednesday, November 5-Thursday, November 6: The police investigate the crime scene they have found at Nanna's school and suspect her classmates Oliver and Jeppe of wrongdoing. Sarah Lund's fiancé shows up in Copenhagen, and she promises to leave for Sweden without delay. Meanwhile, Hartmann learns that a trusted employee has sent a suspicious email.

Friday, November 7-Saturday, November 8: Lund and Meyer investigate teacher Raman al Kemal's actions on the night of the murder. Hartmann learns of foul play at city hall, and his campaign is put under pressure when his opponent reveals Hartmann's ties with the suspect in a TV debate. On the day of Nanna's funeral, Lund is finally on her way to Sweden, and the appearance of one particular guest makes Nanna's father offer him a ride home.

Saturday, November 8-Sunday, November 9. Lund decides to stay in town to continue the investigation even though it puts her relationship with Bengt under strain. Rama is questioned as the main suspect. When Hartmann chooses not to suspend him, it puts his political position under threat.

Sunday, November 9-Monday, November 10. The police locate the place where Nanna was killed, and Rama is charged with the crime. Hartmann is fighting for his political life, but ends up making a tough choice. Meanwhile, Bengt is in a car accident on his way to Sweden, but tries to help Lund from his hospital bed. When the evidence is cast into doubt, Rama is released, but someone has other ideas.

Sarah and Jan know who they are looking for but are puzzled by their superiors' reactions.

Sarah and Jan interrogate Troels, whose private information opens a new can of worms.

The spotlight of the police and media is now trained on Troels Hartmann, and he feels his political career is crumbling. Meanwhile strange things are going on at the town hall with fatal consequences.

Sarah has walked into a life-threatening situation.

Sarah won't get on board when her superiors insist that Nanna's murder has been solved.

Ten days after lawyer Anne Dragsholm was found dead at a WWII memorial, the police have her husband in custody for her murder. But the chief of investigation calls on Sarah Lund, who has transferred away from the crime squad, to return to Copenhagen to look over the case. Meanwhile, a young politician is made minister of justice after his predecessor is incapacitated, and a convict seeks parole from a detention facility to be with his wife and child

Sarah Lund officially joins the investigation into the murders of Anne Dragsholm and soldier Allan Myg Poulsen, who was found butchered in a warehouse. A published video of the captive Dragsholm suggests the assassinations are acts of terrorism, and the police look into links with Islamic extremists. At Parliament the case puts new minister Buch's terrorism legislation in jeopardy when the government's right-wing partners demand a tighter grip on extremism. Prisoner Jens Peter Raben takes matters into his own hands after being denied parole.

The murder of another former soldier, David Grüner, prompts inquiries into his and Raben's army squad and a particular event during the group's Afghanistan mission a few years before. Lund and Strange track down one of the remaining members in a remote Swedish island. Buch is under pressure from above to cave to the right wing's demands about banning Islamic organisations, but new information about former minister Monberg's relationship with one of the victims makes him weary of acting too hastily.

Lund demands that the grave of the dead soldier Per K. Møller be dug up, but her theory that the coffin is empty is proven wrong. She is suspended from the investigation and takes time to attend her mother's wedding until developments bring her back into action. Buch brings his assistant Karina Munk back after she resigned, despite permanent secretary Plough's objections. They pay a visit to former minister Monberg, who has gained consciousness at the hospital, to find out what he knows about the ongoing case.

Lund and Strange return from Afghanistan with their findings, though Brix has become convinced of the guilt of officer Bilal, who has run away with Louise Raben as his hostage. Buch has been held overnight by the police, but returns determined to bring down the government he is part of. Secrets are uncovered at the ministry and in the military, revealing a conspiracy to conceal vital information. Lund puts together some pieces of her own, and it comes to a lethal confrontation with the killer.

Following the kidnapping of Robert Zeuthen's daughter Emilie, Copenhagen Police put every effort into tracking down the perpetrator and finding the little girl. Meanwhile, the kidnapping has quickly become a hot potato in the election campaign and Prime Minister Kamper must deal with the fallout.

Sarah Lund is held back in her attempts to make headway with the investigation, but at least the perpetrator finally has a face. Will he lead police and the Zeuthens to Emilie? Prime Minister Kamper is trying to clean up his circle as he attempts to find out what happened to his son. Suspicions arise about a trusted Zeeland figure as Robert Zeuthen considers drastic action.

It's election day and the Prime Minister has everything to gain, as long as Emilie's fate remains uncertain. Kamper is still haunted by personal demons, and issues of loyalty from within his own ranks rear their ugly heads once again. Meanwhile, as Lund and Borch start to look ahead, police are led to an undisclosed location in a last ditch attempt to find Emilie before it's too late. They are followed by a now dangerously tense Robert Zeuthen. Will the operation succeed in bringing the girl to safety?