Arto clashes with Taru as the precint faces pressure to catch two slippery bank robbers, and Taru's fixation with crime boss Puustinen continues.

Taru attempts to get her team in line to assist in a hunt for a human trafficker, and Arto feeds his grudge against Puustinen.

Arto puts his family and the precinct in jeopardy with his solitary crusade against Puustinen; Maikki investigates a hate crime.

The squad is on the hunt for an escaped murderer, and a meddling agent threatens to put an end to one of the precinct's investigations.

Taru wants to expose a crooked cop, but the investigation threatens trouble. Meanwhile, Arto's suspicious hit close to home.

Maikki's investigation leads her deeper into a conspiracy, while a reporter threatens to ruin a case, and the team tracks a suspect.