Kruk is injured and unsettled after a visit from Slawek, an old friend, who points him home.

Kruk must apply his extraordinary sense of perception to an abduction case.

Kruk goes back to his cold case, which reveals a surprise about Slawek.

Kruk decides he will help the police locate the kidnapped boy.

Kruk is on the verge of discovering the person responsible for the abuse at the orphanage.

Kruk survives but loses an important witness in his private case.

Investigator Adam Kruk, who suffers from violent outbursts, still works under Kolecki in the department. One day, while Kruk is taking part in a raid, a girl breaks into a house and sets a red-haired woman on fire.

Through his investigation, Adam Kruk and his family find themselves in the sights of a contract killer.

After another red-haired woman is murdered, Klaudia is certain that her brother is the murderer. Adam offers protection to a cigarette smuggling leader in exchange for information.

Adam suspects his colleague Kolecki could be the mole. He and Justyna tail him as they continue investigating the murders of the red-haired women, which leads them to Klaudia.

After the factory raid, Justyna and Rudy have to go to Katowice to justify themselves to their superiors; Adam continues to investigate Klaudia and her brother, Cyprian.

To protect both himself and his family, Adam decides to leave the police force. Before he leaves his job for good, he is determined to break up the smuggling rings.

Adam Kruk tries to strike a balance between caring for his son Maks and his investigation into a personal tragedy; Justyna is approached by a certain accountant sent to her by the Danubes, the bosses of the cigarette mafia.

Justyna investigates the case of Karolina Stefaniuk, a missing teenager, and tries to help Rudy escape from the police convoy; Adam begins to trust the mysterious homeless man more, who manages to establish a good relationship with Maks.

Rudy lays low in a house in a secluded area as the search for him continues in Białystok; Justyna wants Rudy to get in touch with Peasant; shocking details about Karolina and her father come to light.

Stefaniuk, whom the police suspect of his daughter's murder, becomes linked to Maks' case; Rudy tries to use Maks as leverage, and his actions worry Justyna.

Kruk finds crucial evidence in a mobile home in the middle of the woods, and this helps him reach Justyna's father. He manages to discover details about Karolina's death but can't find Maks' location.

When Rudy's actions seem to be effective, he contacts Kruk; Kruk is ready to put his life in danger if it allows him to save his son; drama unfolds on the viaduct in Supraśl.