Soon after a sex worker and a community leader are found murdered in a forest, a man confesses. But two journalists suspect there's more to the case.
Doubting Woźniak's guilt, Piotr again interviews Grochowiak's widow, who provides a valuable lead. A mother begs Witek to investigate her child's death.
A trip to the local high school gives Witek a fuller picture of Justyna's life. Woźniak relays a message to Piotr. Teresa receives a threat — and a tip.
Piotr gives Witek a key piece of evidence. While researching Grochowiak and Józek's history at the sports center, Witek spots a photo of Justyna.
Nadia gives Witek a lead on who the murderer might be. Piotr hides in the butcher's van to see where he drives and later learns about Elsa Koepke.
Police Inspector Anna Jass investigates when the body of a teenager is found in the forest. Zarzycki returns to become the Courier's editor-in-chief.
Jass begins to suspect the embankment didn't break by itself, and Zarzycki wants to write an article about what happened in the forest after the war.
Jass and her partner arrest a man who might know more about the teen's death. Meanwhile, Wanycz tries to find the journalist who went missing.
The police decide to close the case of the dead teen, but Jass isn't satisfied with the result. Her investigation leads to a retired militia officer.
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.
When Jass and Mika pressure a suspect to reveal who's behind the breaking of the embankment, the information brings them closer to the teen's killer.
A language barrier stalls Mika's investigation, and a local figurehead is killed at the Centrum Hotel. A new business tycoon arrives in town.
Mika asks for Jass' help while she recovers. After Wanda leaves on a class trip, Zarzycki and Joanna's weekend alone is interrupted.
Jarek and Jass pay Wanda's friend a visit while Zarzycki takes matters into his own hands. Witek and Jassijej agree to help each other.
Zarzycki pursues another lead while Jass and Mika trail a suspect. Witek recalls a story he wrote in 1964.
Jass recalls her last conversation with Teresa and remembers a childhood friend. After taking Hanys up on his offer, Zarzycki goes all in to find Wanda.
Kinga wraps up Jarek's unfinished business as Jass makes a pivotal connection between the case and her own past. Witek closes a chapter.