The Flikken Maastricht team still has its hands full with Danneels and his Hungarian accomplices, an aggressive art gang. Observing the criminals becomes very complicated when Maurice, Eva's brother, turns out to be involved. Maurice wants to talk to Danneels, the mastermind behind the art thefts. Wolfs enlists the help of Marion and Romeo to take over the surveillance and to tell Eva himself that her brother is involved. Emotions have run so high that Wolfs and Eva are no longer really talking. When they decide to arrest the gang, the crooks have already fled. Now they understand why Maurice was brought in: he serves as a guide in the caves of the Zonneberg. Kilometers of passages, where it is pitch dark, no telephone communication possible, various entrances and exits... The perfect location to store the stolen art treasures. The arrest team is called in and they overpower the Hungarians. But where are Maurice and Danneels? Wolfs goes after them on his own. Eva is not to be deterred either and takes another entrance.

A highly aggressive gang of art thieves is active in the Netherlands and Belgium. When a robbery with fatal consequences takes place in Maastricht, Belgian police officer Britt joins Flamand's police team. They are looking for Danneels, a Flemish man who appears to be the mastermind behind the robberies. When they discover Danneels and his Hungarian accomplices at a bungalow park, they decide to eavesdrop on and observe the gang. Romeo and Marion are dealing with a neighborhood dispute that turns out to be very different from what they initially thought. Eva is still trying to dig up information about Wolfs. Unfortunately for her, Wolfs' file is confidential. But when she has to go to Amsterdam, she seizes the opportunity with both hands to get more information. But will that make her happy? Her brother also causes problems when he smashes up the kitchen at Pension de Ponti and Frank's place. Eva no longer knows how to deal with her feelings.

Maurice, Eva's brother, is not receiving enough attention and is at risk of getting back on the wrong path if Eva does not make time for him. Fortunately, Frank comes to the rescue by offering Maurice a place to sleep. Marion's son gets into serious trouble when he tries to "fit in." Marion is torn between her roles as a mother and a police officer. What do you do when you suspect your own son of leaking police information to his "friends"? A car crashes into the water, resulting in a fatality. Is it the result of an illegal street race? What does Marion's son have to do with all this? And what do you do as a police officer when your own son is involved in something this serious?

Wolfs' daughter Fleur goes with Romeo to arrange things for her theater performance. It is supposed to be a special performance in an old factory hall. But it becomes very special when she and Romeo stumble upon a drug deal. Romeo manages to make a phone call just before he and Fleur are taken hostage by Denie. Denie turns out to be an old acquaintance of Romeo's. Flamand takes the lead as negotiator. Wolfs is sent home because he is too emotionally involved, while Eva experiences tense moments with the arrest team. When Romeo is released, Wolfs is still not home, and the sniper is ready to fire, Flamand's team experiences intense moments in Maastricht.

There are violent clashes in Maastricht's nightlife district. Ambulance personnel are threatened by a group of youths while trying to help a girl wearing unusual boots. Romeo and Marion, on their mountain bikes, are called in to assist. Calm seems to have returned to Maastricht when suddenly, out of nowhere, Romeo is beaten to a pulp. There are no CCTV cameras and no one is willing to testify. Romeo pretends that nothing has happened and just wants to get back to work. Wolfs, as a B-O-T (Policy Support Team) member, is going to help Romeo come to terms with this incident after Romeo almost beat up an arrestee. Eva and Wolfs discover that a private security company does have cameras installed at the place where Romeo was beaten up. This company actually does more than just camera surveillance. Eva and Wolfs find the girl in question through this company. She runs away, and so does Wolfs' daughter! This puts the father-daughter relationship under pressure again.

A pool of blood measuring six liters. Blood splatters on the wall. A painting that has disappeared. Where is the body? Who is the perpetrator? Johan de Jaegher, the owner of the gallery, has been missing for a few days. When it turns out to be a Breugel painting worth three million, his brother Gerard quickly becomes a suspect. The painting is discovered at the airport, where it is waiting to be transported to the Philippines. Can Eva and Wolfs catch Gerard in the act? And will Romeo make a mistake? He's not exactly the best boy in the class. But when he accepts "bribes" and comes into contact with weed, things turn out very differently for him than he had hoped. Fortunately, Romeo has the support of his girlfriend. Until Wolfs finds out who his girlfriend is.

Alfred Thielen, Maastricht's biggest and most powerful mafia boss, suddenly reappears. He is pulling the strings. Elusive and unreachable for the justice system and police. Until he wants to make a deal with the Public Prosecution Service. Why? What is going on? Flamand is assigned by the Public Prosecution Service to take him into protective custody and interrogate him. Wolf doesn't trust Thielen at all and wants to give him a rough time. Eva, on the other hand, takes a different approach and tries to get to know him better. Alfred makes a crushing impression on Eva and, according to her, she develops a special bond with him. Will this help her get more information about the organization, or will he keep quiet and play games with her? Romeo is in seventh heaven when he helps Susan, Dennis's mother, with an alleged shoplifting incident involving Dennis. Unfortunately for Romeo, all is not well at Susan's home. Dennis turns out to have more on his conscience than just stealing candy.

The Van Bladel family: father, mother, son, and daughter. An ordinary family. Nothing wrong with them, that much is clear. Crystal clear. But Marion has been promoted to community police officer and has a strange feeling about the Van Bladel family. What is going on with them? Broken glass at the front door, their son caught smoking a joint, their daughter hitting her doll. Something is wrong, but what? Will Marion find out in time? Does Marion still have time for her own family? Her son Frits also has his problems. But mom Marion is busy with her police work and doesn't see that things aren't going smoothly at home either. Fortunately, her colleagues Eva and Wolfs are investigating burglaries in Marion's neighborhood. Romeo is the detective at the office and he eventually finds the burglar, who can then be arrested. Will everything turn out all right after all?

Wolfs is having a hard time in Maastricht. His daughter wants nothing to do with him, and things aren't exactly rosy with his new colleague Eva van Dongen either. When Wolfs meets two men in the bar who are facing the same problems, life seems pleasant again for a moment. The blow is all the greater when he goes home and encounters the two men again, next to a burnt-out car wreck that has crashed into a tree. One is dead and the other seriously injured. Marion hands the case over to Wolfs, and suddenly he has even more problems than before. His private and professional lives become intertwined, and before he has solved the case, he is called in by Flamand. Romeo's career is taking off. He is so eager to learn that after completing his Integrity course, he even fines Mayor Leers.

Pufferfish is a very dangerous poisonous fish that is officially not allowed to be served, but for Japanese people, the fish is an exclusive delicacy. Bridget is found dead with pufferfish in her body. Poisoned or suicide? When it turns out that she was in the process of closing a deal with Geert, the owner of a Japanese restaurant, the suspect quickly emerges. When it also turns out that the relationships between the parties involved are very close, not only professionally but also privately, it becomes a very complicated case for Wolfs and Eva. On top of that, Eva has other personal issues to deal with. Her brother Maurice is arrested again, this time drunk and with a bunch of stolen watches in his pocket. Eva feels compelled to help Maurice. She is torn between work and her personal life. Which is more important? Is she making the right choices?

A lottery played by people you'd rather not meet. Hans van Baeren is one of them. He plays but can no longer afford it, so he sees only one way out: to end it all. But did he really take his own life? His daughter Aimée is convinced he was murdered. Wolfs falls for Aimée's charm and wants to do a little investigation. Eva is busy with other things and doesn't see any point in it. Eva's brother Maurice is in trouble. Maurice is arrested in a warehouse with stolen electronics. He resisted so much that he almost beat Romeo into the hospital. When it turns out that Van Baeren's case involves international fraud, Eva has to get to work. While her brother Maurice is under arrest, Eva has to go undercover. She encounters a Nigerian gang of con artists who don't shy away from a little violence.

Eva and Wolfs end up at the Maastricht market, literally among the fish of fishmonger Jack Smits. Smits is a big guy and is in the process of beating up a Moroccan man when Eva intervenes. The fishmonger claims that his fish has been doused with chlorine and that he is being blackmailed. Eva and Wolfs don't trust Smits at first, but when it's not just the fish that's being targeted and his car is also vandalized, Eva and Wolfs spring into action. Wild chases through the narrow streets of Maastricht and exciting scenes on the water follow. Romeo and Marion are visited by Gertje's wife and children at their desk. Gertje did not come home last night. Something serious must have happened. His wife has no idea where he might be. It's a difficult case, and Romeo throws himself into it when it turns out that Chief Inspector Flamand knows Gertje well and wants him to return to his wife and children.

The lifeless body of a young woman is found in the Jeker river near Maastricht. The only clues are a small box of resin and an expensive necklace. For the young, spirited detective Eva van Dongen, this murder is a new challenge in her dynamic work. Then Floris Wolfs appears at the crime scene.