Friederike und her French boyfriend Mehdi are having some relationship issues. After a therapy session, Friederike suggests an unconventional solution to his infidelity.

Julia and Marie have recently moved to Berlin and are waiting for their friend Brigitta to arrive for a visit.

Nele Ebeling takes Marga home with her to work as a cook, and Marga makes an interesting discovery when meeting Nele's husband!

Separating your trash and recycling incorrectly can get expensive: Judge Alexander Hold sheds light on the legal realities of waste separation.

Nico can't stay in the shared apartment anymore, but Lisa gives him some ideas where he might possibly stay.

Judge Alexander Hold explains some of the complex issues involved with parking your car in Germany.

Nico is disappointed to find out they have the wrong address for his aunt's bike shop.

Rolf and Lena discuss how Lilly could possibly stay in the GDR. In the morning, Lena tries to break the tension that has settled in their household.

Frederick and Piggeldy go looking for rainbows, and in the process try to clarify exactly what they are.

Frederick tries to explain to Piggeldy about the spring season, but gets tangled up in references to Chinese food.

Cassandra Steen joins Xavier Naidoo for a performance of their duet "Wann" in front of a live audience.

Nico comes by after Lisa is finished teaching. While Lisa is on the phone with a potential new housemate, Nico takes a look around the room.

Lilly realizes that she has made things very complicated for Lena and her family. Lena's husband Rolf asks an old friend for a favor.

Lisa teaches her students the importance of learning nouns along with their articles so that the gender gets memorized as well.

When Marga Engel goes to the unemployment office, she meets a woman who is in urgent need of an experienced cook.