A boisterous homicide detective is partnered with a neurotic narc to fight organized crime in the Dutch city of Tilburg.
Theo and Willem suspect a mole among their colleagues, the public prosecutor Josiah Blok.
Tessa's kidnapping forces Theo and Willem to work together with Mick Faassen, a man from another team. But is Mick to be trusted?
Theo and Willem hatch a plan to meet with Leon's business partners and locate the drug money.
To buy Tessa free, Theo and Willem need the drug money from Leon Dunkirk. To get him, they use his ex Maartje as bait. OvJ Blok uses the entire corps to capture Theo.
Donna is giving birth to a daughter while Hans is found dead at the hospital. Can Willem and Theo protect her enough now that she is no longer sure of her life?
After a major drug bust, Theo and Willem are promoted to the Major Crime division. Theo insists to cover for turncoat Maartje, who is shot at o the way to his home, admits having leaked to the drug gang for years but maintains there's a high-level leak unknown even to her. That is prove when hours after a top-secret meeting, the plans for a decoy transport while the drugs are transported to Belgium for incineration are leaked and the inconspicuous truck is robbed.
Willem tries to prove that he has acted well during the shooting incident and takes charge of the investigation and can hardly restrain Theo.
After being shot, Theo and Willem are banned from conducting the investigation of the shooter. But Theo isn't prepared to leave the hunt to his former colleagues and his temperament will play against him.
After a fight with a top criminal, Theo is relegated from the crime squad to the drugs team. Now with a new partner, Willem Niessen, a by-the-book officer, the two opposites have no idea that this is the beginning of the case of their lives.
De paranoia van Theo begint intussen steeds hoger op te lopen en Willem vraagt zich af: is Theo Kamp nog steeds in staat om te werken, of is hij compleet aan het doordraaien?