As they clean up after the party, the group talks about the nationalities of the various guests and the languages they speak. Sebastian then interrupts with unexpected news.

The group plays a game with food from various countries. Nico learns that Nawin has gotten a job in France, but is reluctant to leave Germany.

After it is revealed that Frauke Claassen tried to frame Torben Witt, Eileen Claassen asserts her independence. Harry and Lothar get revenge on Dirk for his role in the confusion surrounding Harry's training program.

Nico meets Selma, who is from Damascus, and learns how to speak about cardinal directions in German.

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

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.

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.

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.

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.

Frauke Claassen is certain that Torben set her car on fire, and the evidence also seems to point to him. Meanwhile, it becomes clear that Onno Wulf has been tampering with the card reader in Ina Grote's shop.