Rebrow tries to discover what happened to Alsu and Aga, but Kuczer strips him of his badge and discharges him from the force. Rebrow discovers the links to his past go back even further than he imagined
Rebrow learns that Barkova plans to hold a crime summit in Poland. For him and Dobosz it's an opportunity to crunch the case. But Barkova knows much more than they reckoned and will find ways to turn the tables on her enemies.
Dobosz brings to light inconsistencies in evidence given by suspects. Overwhelmed by emotions, Rebrow is struggling to bring matters to an end, but his plans are suddenly scotched. Markowski is relentlessly trying to solve the case.
During the search of Natalia's murder scene, Dobosz finds Rebrow's lighter. Later, in Kalita's hiding place she finds the gun which was used to shoot Kosowski and Ewa, and also a Rebrow's blood stained shirt. Kalita and Rebrow are arrested.
There is unrest in the borderland, and Border Guards working under enormous pressure. Prosecutor Dobosz returns to the Bieszczady Mountains to lead a new investigation. Wanted by the police, Rebrow is hiding in the backwoods.
There is another human trafficking incident on the border. Border Guards organize a raid which leads to a shootout. New suspects are named in the investigation, what brings back old demons, revives past conflicts and primeval fears.
There are new suspects who may help solve the case. Dobosz is trying to earn Alsu's trust to find out how she managed to get to Rebrow's hideout. She places Alsu and Halid in a refugee center. Rebrow tries to reach them.
Rebrow is impressed by evidence uncovered by Dobosz. He tries to contact Wisniak and leaves for Ukraine. The regional head, Kurczer, has become closely involved in the case and orders the pack to back off.
Rebrow is haunted by the thought that Ewa is alive. A group of illegal immigrants is walking along the main human trafficking route. During the chase after one of the guides, Rebrow notices a mysterious shape on the forest clearing.
Natalia's funeral is staged in Warsaw. Rebrow asks for a meeting with DA Dobosz and confesses to killing Natalia. During the inspection at the crime scene, Rebrow flees. The police and Border Guard officers set off on a chase.