Still reeling from her husband’s death, Detective Katarzyna Zawieja launches an investigation into a murder of a young woman and her missing newborn.

Zawieja investigates the links between the murder and the suspicious debts and business dealings of the victim’s husband Kosiński.

As Zawieja and Trepa search for links between the victim and former patients at a psychiatric hospital where she worked, Strzelecki receives a suspicious package.

As the police launch a search for Wróbel, one of the victim’s patients, Zawieja visits the prison where he once served time.

The day of Magda’s funeral leads Zawieja on a dangerous chase for her killer, but an interrogation with an inmate at Goleniów prison breeds new clues – and increased suspicions.

While Strzelecki takes charge of the case, a dangerous trip to a remote island brings Zawieja closer than ever to the truth.

After encountering a suspicious shipping container, Katarzyna is tasked with bringing down a crime lord with ties to a notorious trafficking ring.

After learning a dark truth about her late husband's undercover work, Zawieja makes a series of rash decisions that could jeopardize the case.

As she loses herself in her work, Zawieja discovers another shocking connection between her past, Oliwier's murder and the trafficking ring.

After a fire at the docks, Zawieja attempts to tie the Lanskis to Oliwier’s murder. An unexpected ally helps locate the missing shipping container.

While reeling from a devastating loss, Zawieja vows to locate a trafficking victim’s missing daughter.

After surviving a violent shootout, Zawieja faces an impossible choice when her own family is caught in the crosshairs.

Having been demoted to a beat cop, Katarzyna Zawieja investigates a spate of drug overdoses while balancing an increasingly chaotic home life.

After the murder of a high-school teacher reveals a connection to the local drug trade, Zawieja and Trepa investigate possible leads.

As tensions flare between Zawieja and Trepa, the investigation uncovers a possible gang war brewing between Nowak and Molski.

While protesters take to the streets, Zawieja attempts to connect the dots tying Nowak to Molski…but learns a shocking truth about herself instead.

As Nowak's men prepare for their biggest deal yet, Trepa leads the investigation – unaware that Zawieja is missing.

As Zawieja faces off against Molski, an investigation brings corruption on the force to light, and Trepa learns a surprising truth.