When Willem is falsely accused of murder, he is forced to go on the run. With the entire Amsterdam police force hot on his heels, Willem tries everything he can to make Theo see the truth about his father even if it could mean Willem's own death.

The assassination of Guy Moliers is big news. Theo, Willem, and Sam team up with Neelie van Leeuwen to lure *The Diplomat* out of his lair. To do so, they need the deadly master criminal Razinsky as bait. But can Neelie van Leeuwen be trusted, or is she putting the lives of all our heroes at risk?

With Guy Moliers still on the loose, Theo rushes to his penthouse to save Maartje. When he gets there, it seems he's too late, so Theo makes a drastic decision. Willem and Sam must then do everything in their power to save Theo's life. A race against the clock begins.

The shipment is in jeopardy, and Moliers is pressuring Theo to hand over Roxy. Theo is given a few hours; otherwise, the master criminal will kill Maartje. A race against the clock begins, ending in bloodshed in the ports of IJmuiden.

Theo goes undercover in Guy Moliers' gang and confides a secret to Willem. Sam and Willem do everything in their power to put Tessa's kidnapper behind bars. Meanwhile, Maartje has maneuvered herself into an extremely dangerous position.

Willem, Theo, and Sam join forces to find out exactly what Moliers' gang is up to. Willem is struggling with family problems in Tilburg, where he faces a shocking surprise. Meanwhile, Roxy comes forward with important new information about the extortion case.

Theo and Willem set out in pursuit of Theo's father. This leads the men to a vacation resort, where they run into a gang of human traffickers. What is the connection between these criminals and Theo's father?

Willem starts his first day on the job in Amsterdam, where he and his new partner, Sam, grill Roxy, the drugged prostitute. Meanwhile, Theo and Maartje put a plan into action to lure hitman Achmatov out of hiding.

After a bloody shootout, Theo and Willem find themselves in Amsterdam's nightlife scene. There, a deadly hitman awaits them one who, however, might bring them closer to Theo's father.

Willem gets the shock of his life when he hears that Theo has been shot in his own apartment. Willem rushes to the hospital, where the question soon arises: Why did Theo have to die?