Henk discovers that Luuk managed to breed a black tulip. Emma and Ben can't agree whether they should sell Luuk’s big discovery to the competition.

An even larger void is created by the revelation about Lynn and Martijn's paternity. Martijn tries to get closer to Henk, while struggling with his guilt. Lynn wants to get to know the Vonks better.

The Vonk flower company seems to have been stricken with a mysterious contamination. Emma suspects that Ben is behind it. Lynn is very curious about her biological father.

Lynn feels the need to break with Martijn as he's overloaded with stress. Emma brings a psychiatrist to speak with Jisanne. And how can Emma stop Felix finding out about her deception?

Felix and Henk are convinced that Emma's behind the substitution of the tulip bulb, and they want redress. Emma realises that she must keep her secrets. Marieke uses Jisanne for her own purposes.

While Joeri's with Lynn in Amsterdam, his suspicions are confirmed and he prepares for a confrontation. Felix is trying to drive Vonk Ltd out of business.

Inspector Zoey starts to ask questions about Martijn. Henk gets suspicions of his own. Zoey also visits Joeri. Emma is still hustling to keep Vonk Ltd afloat.