While Lisa drops Emma off at a birthday party, Nico waits in the car and hears something interesting on the radio.

This installment of questions from the German citizenship test covers issues from maternity protection to the treaties that have defined German history.

Nico has the bold idea to call a radio station and tell them about his missing bag.

Nico and Lisa go to the police station, where her father files the little information Nico can give him.

Piggeldy and Frederick go hiking, which doesn't appeal to Piggeldy at all until Frederick starts a sing-a-long.

Nico goes to the "Wohngemeinschaft" ("WG") where Lisa lives and meets her housemates, who are getting ready for a party.

Piggeldy tries to learn how to drive, but something doesn't seem to be working out quite right...

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.

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

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.

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

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

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

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

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