Season 1

Elisabeth 'Liddy' Godderis, missing since two days at her Brussels catering job, is found murdered at her home in Dilbeek (near Brussels). The killer changed the bed linen and washed her posthumously, in bath. Gardener Marcel Geeraerts, a former colleague and supervisor, saw leave her just-dumped young gigolo, truck-driver Alex Cools. Part of the team assumes he did it, others he's been set up, and indeed she had other admirers. Liddy's bachelor sole son André Godderis, in debt after a failed business she refused to invest in, is caught intruding the crime scene.

Serge Graulus and his girl rob fur-maker Isaac Bachmann's workshop at night in his home. When the old man catches him in the act, Serge wrestles his shotgun away and uses it on him, fatally. After the team arrests Alain Steinberg's contraband gang, caught selling the fenced furs, he tips them off so they can trap Serge, but he gets away. An at first sight unrelated jewel case leads to his girl-friend Petra.

Tibo Leemans breaks up with his lover and grows tired of unreliable Matti's constant failing and brooding over her dad and her own youth. Martin Baeten dies from a broken neck, apparently accidentally, in a jealous fight with her new fiancé, marketing consultant Steve Hoste, over Martin's ex, Mini Max supermarket chain HQ computer programmer Andrea Daniëls, on the Brussels street outside her home. The next day, someone breaks the seals at Martin's apartment. Russian mobster Vladimir Vasiliev is spotted lurking around. Andrea and Steve lie about their business connection and common med studies past.

While the BOB celebrate the departure of colleague Frans Van Lierde, a gruesome robbery with murder is committed on taxi driver Cyriel Stroobrants. He is the father of two kids. The BOB search in vain for the murderer. A small robbery in the neighborhood accelerates the investigation. It leads the investigators to a village teacher who seems to know more.

Hugo Platel is an entrepreneur who exports humanitarian goods for the European Commision to the far east. When a very professional burglary is committed in his villa, the BOB is asked for assistance. Hugo acts very nervous and soon after a high civil servant of the European Commision gets into big trouble. Then there is an unexpected next death...

During a robbery in the studio of the Anderlechtse jeweler Boumans, there is a shot fired. The bullet hits daughter Sonja in the eye and she is mutilated for life. One of the perpetrators gets out very soon after his conviction. The jeweler thinks the robber got out far to easy. He won't listen to the BOB and takes justice in his own hands.

Tamara Godon, a sixteen year old girl, stays a while in a pub with her boyfriend Franco after school. When she goes home, she goes alone. The next day she is found dead. Franco is arrested, but then there is a rather strange discovery in Tamara's room.

The renowned psychiatrist Oswald Nys has a very strange hobby: he tortures prostitutes who are delivered to him by nightclub owner Bellon. However this goes terribly wrong and the illegal Akkim dies. Another victim of Nys, Sylvie Van Dijck, who is a coke addict, threatens to tell the whole world and phones Matti to make an appointment. But she doesn't show and a night later she is found dead. The only starting point Matti has, is the name Akkim. For some strange reason Sylvie visited her father, Eric Van Dijck, the night she was murdered. She hasn't made contact with him in years. Why now?

Ex-con Marco Beckers kidnaps his son from kindergarten, because his ex-girlfriend Pascale refuses him any contact. Because of the quick intervention from Nauwelaert's team, they can avoid worse. Beckers states that Pascale's new friend, antiquarian Frison, is much more of a criminal then he is, but he was lucky never to get caught. Frison declares that the boy is his son. Beckers has evidence that Frison deals in stolen art and also swindles with his insurance. An unsolved murder dossier about a shifty Dutch art dealer also mentions Frison, but Marco denies knowing about it. Investigating Frison and Beckers., John learns that Marco gets his information from his former foreign legion instructor Stassart.

Juan promised his two good friends Noel and Roger a very big deal, but can't keep his promise. He has stolen the car from a certain Patrick Mariman and pulled the car totally apart, but couldn't find anything. He tries to sell the car back to Mariman, but the transaction doesn't go well and he gets shot. In the beginning the trail leads to Juans friends, but it seems that Juan worked at Mariman's golf club and was fired after a theft. He got that job thanks to Mariman's wife and two social workers, Michel Jacobs and Ria Maes. The incident of the theft was settled amicably. Mariman also gave 50.000 frank to Jacob's community center.