Wolfs and Eva are confronted with ruthless criminals who have their sights set on a jewelry store. They take the sick daughter of an employee hostage, who lets them in and gives them access to the safe. The men make off with a large amount of expensive jewelry. But thanks to Wolfs and Eva's alertness, they manage to catch one of the perpetrators before he can escape via the airport. They interrogate the man, Serge, but he doesn't budge and even laughs at them. The next day, it becomes clear why. His accomplices have kidnapped the sick girl again during the night and threaten to kill her if Serge is not released that same day. While everyone is searching for the girl's whereabouts, Wolfs and Eva have no choice but to let Serge go. Together with Mechels and Bols, they devise a daring plan to find the girl and recapture Serge. Meanwhile, Marion and Romeo are dealing with a foundling who was discovered at the church. Further investigation reveals that this is not the first time this has happened.

Contaminated pills are appearing in Maastricht's nightlife scene. It proves fatal for one girl. After studying surveillance footage, the dealer is fortunately caught quickly, but he refuses to say anything. Because there is insufficient evidence, Bols has to let him go, after which Wolfs and Eva keep an eye on the boy. This quickly leads them to the place where the pills are produced. Mechels forces Wolfs to improve his relationship with Bols and go out for dinner together. When a failed attempt is made on Bols' life during that dinner, it becomes clear that he has been under threat for some time. Most likely from the gang of jewel thieves that Wolfs and Eva caught earlier. Fleur's situation in prison is deteriorating by the day and the prison management refuses to improve her situation. Wolfs tries everything, but even Mechels and Bols are unable to help him. He becomes increasingly frustrated and decides to take matters into his own hands.