Border Guard officers detain two migrants trying to flee from Poland to Ukraine. Following their trail, Rebrow accidentally stumbles across a crime scene. Markowski opens an investigation, while Rebrow asks Dobosz for assistance.
The Pack stumbles across a group of suspects in the forest. The investigation becomes even more complicated when an arrest is followed by dramatic events. Meanwhile, on the radar appears Barkova - the new boss of Ukrainian smugglers.
Dobosz discovers Marcin Gauza's weakness and receives new evidence which is crucial for the investigation. Wisniak sees an opportunity to climb the smuggling ranks and offers Barkova a helping hand in bringing back her people from Poland.
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 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.
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
