Lidia is lured to Sweden by her boyfriend where she is prostituted, but she is harder to crush than the traffickers thought. Police couple Ewert and Anni Gren's baby happiness takes an abrupt turn.

Lidia is brutally beaten and meets the police Mariana at the hospital. Mariana wants to catch those responsible, but Lidia wants to take matters into her own hands. Ewert receives devastating news.

The hostage dealer Tobias Nordwall is called to the hospital where Lidia unexpectedly demands that he switches place with the hostage. Police must now figure out her motives to avoid total disaster.

After the explosion, Ewert, Mariana and Sven seek answers, and their investigation leads them on an adrenaline-filled hunt through Stockholm.

Ewert and Alina travel to Romania to find out the truth about human trafficking in Stockholm and to clear Tobias' name. Lucian tries to get rid of evidence and Jochum is faced with a crucial decision.

Jochum decides: one last job, then he will commit to a law-abiding life, but the gangster he works for has other plans. Ewert is back and ready to share what he found out, but can he tell the whole truth?