This song about monkeys is well-liked by German children and appears in many books of children's songs.

Translated: Piggeldy learns about meanness and cruelty in an outing that does not end particularly well.

After Pascal sells the apartment, Lilly begins to do her own research on how to move to East Germany and be with her aunt.

Nawin receives some nice souvenirs at his farewell party, and he and Nico and Lisa discuss various German cities.

Harry and Henning have to apologize to Ina Grote and Onno Wulf. Meanwhile, the truth about what happened at Frauke Claassen's house is revealed.

Lilly is very upset when her mother's belongings are cleared out of the apartment they once lived in together.

Nico and Lisa eat pizza with Lisa's roommates and talk about the party they are having.

It seems as if Torben has been caught red-handed and the evidence adds up against Onno. Can they convince the police of their innocence?

Piggeldy is curious about birdsong, and Frederick has a few questions he wants to answer for himself as well.

Lilly and her friend look at old photographs of Lilly's parents. In East Berlin, Lena and Rolf try to figure out how they can help Lilly.

Nico and his friends order pizza and find out that someone has responded to the photograph of his aunt's bicycle shop on social media.

The police doubt the credibility of the evidence against Torben Witt and continue to watch over the Claassen residence. Meanwhile, Ina Grote helps with the arrest of Onno Wulf.

Frederick tells Piggeldy that he can fly down a mountain by flapping his ears.

Pascal and Lena discuss how things will move forward. The next morning, Lilly races to the train station, desperately hoping she can stay with her aunt.

When Nico shows Nina and Sebastian the photo of his aunt, Sebastian has the idea to post the photo online and see if anyone recognizes the bicycle shop.