A night-watcher of the Rubenhuis, Antwerp's splendid baroque museum, has been murdered at night. The intruder probably came trough a hatch to the old sewage system. Lucas is on FBI forensic training course. Team Tom works out the tensions between museum staff and the significance of selective theft from its un-exhibited paintings collection, both reaching back into history.

Sandrine Pauwels Pauwel throws out her husband Bert Nijs's things and him, then claims 40 year-old surgery professor Han Wuyts's car, which hits Bert on the road right there, meant to kill, although he got fatally injured himself. His widow, nurse Margot, denies he knew Bert and knows no enemies, nor did Han care for art, although his trunk contains a valuable painting by Lievens. His death cleared the way for his assistant Johan Beunis to be promoted and his anesthetist Vincent De Belder to run for rector (university chancellor). Autopsy shows his ribs were ...

Geoffrey 'King of Skate' Brouckaert makes a fatal fall during one of his daring stunts. Contractor Antoine Vermeer already has Geoffrey's rival Stan 'The Lord' Van Avermaet roughed up for intruding his construction site but has an alibi. Stan runs for the police, which leads to a crash landing him in hospital, but also has an alibi. Tom dares CSI Lucas for forensic evidence in the case and his lover's. When Fien tells her undercover lover Brik Delsing she's pregnant, he bluntly demands an abortion. Jimmy and amused Mike handle the case of Wouter Van Belle and his ex's...

Wealthy investment broker Paul Dewachter, who just invited Frederik for a hare dinner as new member of his investment club Croesus, finds his beloved Persian cat Arsalan skinned at home. Later a bomb explodes in his car. Tom discovers the at first sight happy family is a mess, including son Kristof, a cocaine addict. Bad investments have terrible consequences. Lucas accepts his boys want their mother and accepts a divorce. Fien considers what to do with Brik's baby.

Two teenagers find a substantial amount of drugs and decide to sell it in clubs. They do not know that drugs are part of a criminal transaction. The drug lord wants his wares back and opens the hunt for the teens. Soon there is a victim. Tom Segers and Fien Bosvoorde make an investigation. Meanwhile, there comes an alarming message at the office of Zone Stad. An unknown reports that he will commit suicide on the roof across the Oudaan.

The office of Zone Stad has been shot. A young agent was hit with serious injuries and is taken to the hospital. Was the student himself the target or was he at a bad time in the bad place? Tom Segers and Fien Bosvoorde want to find out and with their research the discover a web of prostitution and weapons. Meanwhile, a second attack follows.

While Marijke Wijnant is taking a shower, her boyfriend Kris Vervecken gets brutally killed in their living room. Both worked as officers in the army and so Tom and Fien go to the barracks to look for a starting point. They soon find one in person of Dieter Landuyt, a newcomer who felt humiliated after his baptism by "the fantastic four", a group of close friends consisting of Kris and his colleagues Steven, Rudy and Bruno. Meanwhile Seppe tells Inez that the Alva-clan needs a new leader after the death of Rodrigo and Dimitri.

A man is firmly gagged in a car which gets deliberately pulverized. Tom and Fien discover the car was stolen one week ago in Kiev, but have no idea on the identity of the victim and the reason to kill him. Jimmy has a date with a beautiful girl he met on Facebook. Tom gets extremely angry towards Lucas.