Sonja Ek lives a happy and loving life with her husband and three children in a suburb outside Stockholm. One day everything suddenly changes and Sonja is forced to cross the border into the criminal world in order to protect her children.
The family is keeping watch at the hospital. Stein is pressed for information about who shot Broman's husband. The police conduct a house search at the home of the Ek family.
Sonja tries to find out who the Major is. Stein is looking for the missing cocaine. Niklas, who is in custody, wants Sonja to run the company. Christian Broman demands money from Stein.
Barry is at Stein's house to collect money, but Stein doesn't have enough to give him. Lukas looks after the children, Gustav is visited by Jill and they take ecstasy together. Sonja seeks out Broman to give him the money personally.
Sonja continues the search for the Major. The police tell Niklas that Sonja hangs out with Broman. Sonja's search leads her towards Norway. Kattis persuades Sonja to go out and celebrate Hanna's birthday at Broman's restaurant.
Nina has disappeared. Has she escaped or is she kidnapped? Sonja has told Lukas about what Stein has done and Lukas seeks him out. Broman suspects that Sonja knows who the Major is.
The police have started monitoring Sonja 24 hours a day, they know she is hiding things. Sonja and Magdalena succeed in deceiving the police. Kattis puts both Sonja and Stein against the wall. Linus begins to remember.
It's a funeral. Linus remembers more and more and wants to tell Sonja. Kattis gets a bad feeling about who is responsible for the bomb. Sonja begins to realize that Niklas has lied to her. h