Nico's friends take him to the doctor's office, where he has an appointment to get his foot examined.

On the soccer field, Nico suddenly experiences pain in his foot. The others sit him down and take a look at it.

The guys discuss healthy eating on the soccer field. As it turns out, they have slightly different opinions about what qualifies as healthy food.

The guys might not be the good players that they claimed to be, or perhaps they are just out of practice? They debate what the key is to staying in shape.

Nico asks Tarek how often he and his friends get to play soccer together. It seems that they are all quite busy, but still manage to stay in pretty good shape.

The guys get ready to play soccer, taking inventory of their equipment and food. Nico doesn't have soccer shoes, but is able to borrow some.

Unable to figure out whom Yara would've gone to visit in Switzerland, the group decides the best thing to do is to wait for her return.

We see how Yara got a phone call two weeks ago that led to her unexpectedly flying to Switzerland.

So where is Yara? Lisa's father asks Nico and Yara's friends a series of questions. Then they find some evidence that Yara might be in Switzerland. But why?

Various residents of Hausach compete with aircraft they have constructed themselves. Who will win?

The Hochstetten football club sings the German folk song "Wir lagen vor Madagaskar" about a doomed group of sailors.

Nico gives us some information about his background, but is interrupted when Lisa brings some good news.

Eva tells us about the tradition of Advent calendars and shows us one that she has made herself.

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

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