Sonja Ek lives a happy and loving life with her husband and three children in a suburb of Stockholm. One day, tragedy strikes, and in order to protect her children, Sonja is forced to cross the border into the criminal world.

Niklas asks Sonja to take care of the company's affairs while he is in jail. Meanwhile, Sonja tries to find out who the major is, Stein looks for the missing cocaine and Christian Broman demands money from Stein for the stolen drugs.