Kryminalni was a Polish crime drama television series that aired on TVN network from September 18, 2004 until May 24, 2008. It ran for 8 seasons and 101 episodes were broadcast in total. It was created by Polish director and screenwriter Piotr Wereśniak and produced by MTL Maxfilm studio. The series followed life and work of police officers from the elite Criminal Terror and Murders Division of the Warsaw Metropolitan Police; the title refers to police officers in the crime section. The three main characters were Adam Zawada, an experienced, tough cup, his younger colleague Marek Brodecki and Barbara Storosz, an ambitious female officer who in the first season joins the team just after graduating. Although none of the main actors had had star status before the series debuted, all three of them rose to prominence and popularity during the 5-year-long run. Many of Poland's best known actors guest starred, usually playing roles of people involved in just one particular investigation. The serial was one of the most popular in Poland: each week it had an audience of 4 million.

13-year-old Bartek tries desperately to hide the fact that his father beats him. Lonely and with no support from his mother or his school, tyrannized by his soccer coach, the boy finds his only friend in an old dying stray dog.

Jurek Kiler has become a VIP - sponsoring the Polish government, playing tennis with the President, meeting world leaders. He must oversee a transfer of a substantial amount of gold. However, in his past activities, he has made enemies. Mighty ones. And thus Jurek Kiler's next adventure begins as he has to face attempts at kidnapping, assassinations and problems in his love life...

A journalist from "Gazeta Wyborcza" recalls his investigative reports and the consequences he suffered while trying to reveal the truth.

Franz Maurer, a compromised cop, former officer of the criminal department of the Warsaw's police, is released from prison where he was doing time for his brutality and murders. He is awaited by Nowy, a former police colleague. Franz tries to go straight starting hard work in a steel mill. Nevertheless, he must leave the factory as a criminal with an uncertain past when he doesn't join the strike organized by the workers' union. At the same time, a merciless war continues in former Yugoslavia. Wolf and William, two high rank officers, come to Poland in order to organize a network selling and smuggling arms to Yugoslavia by way of Albania.

A Russian investigator is demoted after a young PPS militia escapes from Poland and vows revenge.

The series centres around the investigations of Police Lieutenant Sławomir Borewicz. Each episode features a different case being solved by Borewicz.