After the murder of an undercover agent, sworn enemies Bob Lemmens (Tom Waes) and Ferry Bouman (Frank Lammers) must work together to roll up Serkan and Leyla Bulut’s Turkish XTC-network.
After the events of season 2, Bob has been fired from the police department, and a court case and possible prison sentence are looming over him. Ferry is released from prison, but finds out that his place at the top of the XTC-world has been taken over by a new, stronger, and smarter gang which is led by the Turkish couple Serkan and Leyla Bulut (Murat Seven and Nazmiye Oral).
When a young undercover agent is murdered, the police realise that they have a mole in their midst. Patrick Diericks (Jeroen Van Der Ven) has a proposition for Bob: he can make his court case disappear if Bob goes undercover again to infiltrate Serkan’s gang as a civilian informer and unmask the traitor.
Bob reluctantly takes on this life-threatening mission in order to get his life back on track and secure a future with his new family. But then he comes up against Ferry Bouman…