Jass discovers a secret about the victim's parents that shines new light on the investigation. Zarzycki finds a lead in the case of Kielak's missing son.
The police move on Kociolek and Muszka's business. The identity of the dead Polish woman found in the mire is revealed. Witek gets a chance to reconnect with his past.
Zarzycki investigates Wanda's disappearance on his own. Kinga goes against her boss to dig into the Polish woman found in the mire grave. Jass, Mika, and Dzidzia all end up at Muszka's house.
Mika and Jass find a clue to the identity of Wanda's kidnapper. Jass' father continues his search for Kociolek's son. Hanys gets more aggressive in his illegal activities, which radicalizes people against him.
The police decide to close the case of the dead teen, but Jass isn't satisfied with the result and her investigation leads to a retired militia officer.
November 1999. The body of a Polish woman is found in a supposedly German grave. Jass' operation to catch booze traffickers goes terribly wrong. Mika wants to pursue one last case before retirement.
Jass gets involved in Mika's investigation by talking to the Romani girl. Piotr tries to reconnect with his daughter Wanda. Witold is searching for the letter he was supposed to get. Some of Kociolek's past is revealed.
Piotr uncovers clues about the murders in the forest as Witold impersonates various officials to gather facts about what led up to Justyna's death. Flashbacks also reveal what Justyna's final days were like.