After losing his drug empire, Ferry Bouman has found a measure of peace away from Brabant's criminal underworld — until his past catches up to him.

Wounds are licked and new alliances are formed. Bob realises that his family will never be safe as long as Ferry is around. He decides to rejoin.

With Timur stirring the pot, Serkan comes to a decision about the deal -- and about Leyla; Bob's uneasy arrangement with Ferry comes to a halt.

Tensions arise at Leyla and Serkan's family celebration, as Bob and Ferry try to close the deal, while a wary Timur digs for more information.

Bob seeks help from an old acquaintance and has to pull out all the stops to save the case. Serkan becomes suspicious. Danielle wants to hear the truth from Ferry.

Bob and Ferry are stuck in Turkey. Nathalie bites back, while Patrick has to decide how dirty he wants to get his hands. Timur tries to get Serkan to leave Leyla. The identity of the mole is revealed.

Contact with Leyla is difficult. To see if she can trust her new partners, Bob and Ferry will have to endure a severe test. Emotions run high and Timur struggles to come to terms with the loss of his cousin.

Bob and Ferry discuss the new rules of the game, which are immediately put to the test in their search for precursors. Meanwhile, the Bulut clan deals with internal tensions.

An undercover agent at Serkan Bulut's Dutch-Turkish ecstasy gang is murdered. Police suspect they have a mole in their ranks. Former agent Bob Lemmens is approached by Patrick Diericks to infiltrate as a civilian infiltrator.