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!