The environment concerns everyone—including these roommates! How can people be convinced to recycle and sustainably change their behavior as consumers? The four discuss what could be done.

Lisa wants her class to try giving up plastic for a week. She quickly realizes that it's more challenging than she first thought, but luckily, some sweet treats come in cardboard packaging too.

Lisa and Selma are chatting about green energy at Das Marek when Yara shows up and tells them about the flea market she's organizing. This is the first time Yara has met Selma, though she knows that Nico has a big crush on her.

Yara's flea market seems to be a hit, and now a newspaper reporter has even come to interview her!

The local newspaper editor has offered to place an advertisement for the bike shop for free. Pepe is enthusiastic, but Yara worries the reporter might have other intentions.

Yara is visiting the newspaper office to discuss the publication of the ad for her bike shop. The editor gives her a tour of the editorial department, not entirely without ulterior motives.

Yara tells Pepe about her visit to the newspaper office. The two discuss reading newspapers: do they prefer analog or digital? The discussion gives Pepe a new business idea.

Otto says that he's finished with false identities and tells his friend Thomas that he doesn't want to place any new personal ads in the newspaper.

Why have two paramedics suddenly turned up Das Marek? Embarrassed, Max and Tarek have to clarify the situation.

What's the deal with "the dead grandmother?" Max and Tarek clarify the situation regarding Nico and Inge.

The Peppercorns are back again!
In the first part of this new episode, a student is trying to blackmail Mr. Schulze in order to get a better grade. Nele is temporarily in the same class as her brother and Tayo, who is also Mr. Schulze's foster son.