Nici is about to tell Mathias that she is his daughter - Ben and Betty intervene and Nici, unsure of himself, misses the right moment. Mathias sprains his ankle on the estate and Sandra takes him to the hospital. There both are confronted with the song from New Year's Eve 1999/2000. With Mathias it "clicks": Is Nici his daughter? Lilly wants to fall in love with her crush instead of going to flute lessons. Amelie and Hendrik cover for them - until Britta gets wind of it and tells all three to practice two pieces on the flute.

When Leon misinterprets an innocent moment from Josie and Paul, the two men get into an argument. Josie tries to mediate, but the competitive edge continues the next day as Paul and Leon train for the triathlon. In doing so, Paul Leon unsuspectingly puts himself in danger. André offers Helene to organize an event in the café to collect additional income for Max and Vanessa's wedding. Helene is touched and together with Gerry she comes up with the idea of ​​organizing a raffle. But then they are accused of illegal gambling.

Ringo blames Cecilia for his suffering. In an act of revenge against her, he finds a short-term outlet for his pain. Monika wants to take the next step in a relationship with Theo. However, she finds that there is competition she cannot compete with. Jakob and Stella unexpectedly have the same suspicions. It shatters soon after, but that's when the investigation really begins.

Jenny and Justus don't manage to spend time together. Justus has a good idea how he can see Jenny more often. After Chiara opened up to Leyla, she can understand Chiara's desire for revenge on Jill, but everything turns out differently. Yannick wants to help his girlfriend Isabelle in the magnificent work. When he claims Gabriel for this, he has an ugly encounter with Isabelle.

The Baltic Sea project is in danger of failing because the architect is leaving. Katrin asks Sunny for help, but she doesn't feel up to the task. But when she realizes how much pressure Katrin is under, she changes her mind. Toni doesn't want to go to New York without Erik. But Erik touchingly shows Toni that they are up to a long-distance relationship. Toni finally realizes that it would be wrong to forego this unique opportunity.