Julien looks for missing prostitute Natalie Rose. He encounters her uncle Edward, and together they enter the criminal underworld of Amsterdam's red light district.

Julien has to tread carefully when Natalie reveals the full truth about Edward. When tragedy strikes, Julien grows determined to uncover Edward's true motives. Meanwhile, a sinister figure arrives at Sara's door.

After having a confrontation with Edward, Julien is forced to take desperate measures to protect his family. Meanwhile, a personal revelation forces Julien to deal with secrets from his past.

Julien pursues the money trail and is left reeling from Martha's confession. Meanwhile, Genevieve convinces Edward to meet Constantin, but Edward makes a reckless move that puts the whole case in jeopardy.

Edward flees to England with the money in tow. Meanwhile, Julien and Genevieve plan a risky move to try and sway Constantin, and bring down the Brigada.

After outmanoeuvring Constantin, the Brigada make preparations for their own move. Meanwhile, Julien uncovers their secret inside source.