Watch The Thaw

In a fight to stop their ship from leaving the port, Zawieja finally faces off against Molski and Lanski. Then, after corruption on the force comes to light, Trepa learns a surprising truth, and Zawieja awaits news concerning her status as detective.

Armed with new findings but unaware that Zawieja is missing, Trepa is dispatched to investigate a large deal involving Nowak. Later, Madejski faces a choice, while Hania provides key intel about her mother's possible whereabouts.

While protesters take to the streets, Zawieja looks to connect the drug trade to Molski - but learns a shocking truth about herself instead. As Trepa works on hacking into a key piece of evidence, Nowak plays his hand for leverage over Madejski and Kamińska.

After a break-in at Zawieja's home, tensions with Trepa flare, leading to a showdown at the station. Later, Trepa witnesses the start of a war between Nowak and Molski's men, while Zawieja attempts to meet with Kamil.

When a teacher from the local high school is found murdered, Zawieja tracks a lead from a student, while Trepa investigates a jilted colleague with a possible motive. Later, Zawieja's inability to stay off the case leads her to uncover a connection between local crime boss Nowak and Wiktor Molski.

Now demoted to a beat cop, Zawieja attempts to balance the limitations of her new role with her ongoing hunt for the notorious trafficker responsible for her late husband's death. Meanwhile, as an epidemic of drug overdoses rocks Szczecin, Zawieja looks to root out the dealers responsible for the death of a local teen.