While commissioner Volkan Serter's police team massively searches for Lena, Marianne abuses his trust as well and totally neglects Seppe to get a scoop. Then a 107,000 Euros ransom is demanded.

Together with the police, Marianne takes a look at surveillance videos. When she recognizes a man from the fundraiser, she feels she's getting on to something. Later, a search party is formed to find Lena.

During the search party, Lena's mother stumbles upon a horrible scene. Cato makes a shocking confession and new suspect emerges.

Ludo admits he had a fight with Lena on the evening of her disappearance and freaked out. Meanwhile, someone is caught on a surveillance cam using Lena's debit card.

Secrets are exposed and a new suspect is arrested in the Lena Nijs case, shifting the case into high gear. Meanwhile, Seppe hasn't been at school and Marianne is worried when she can't find him.

Marianne discovers who put the note and earring in her mailbox, which puts the death of Lena in a completely new perspective.

Marianne finally solves the mystery surrounding the case Lena Nijs once and for all, meanwhile the moment of Seppe's move to Geneve comes closer.