Ludwig is all excited because he has been hearing strange noises in the night. Could it be a ghost?

The thieves are finally caught and now Nina and Max have to say goodbye... or do they?

The original dream of flying fascinates Wolfgang Labudde, owner of Vierwerk GmbH, a company that manufactures light aircraft. He draws his inspiration from the flying machines of Otto Lilienthal, the pioneer and first successful aviator in human history.

The condition of the aquatic habitat is checked at regular intervals by conservationists and some interesting discoveries have already been made. Meanwhile, the ospreys are gradually training their young to become independent.

Jo and Naya's plan to give Ludwig a fright to get rid of his hiccups fails, but they accidentally find a method that finally helps. And it's fun too!

There are a few simple words and expressions in German that you can use to take part in a conversation in everyday situations. Eylin tells you what they are in this video.

Our heroes are back on board the ferry looking for the thieves. Just as they are about to give up, they notice some unusual behavior. Are they on the right trail?

The meadows around the Feldberg Lakes are home to an enormous variety of floral and fauna. While deer, foxes, and hares live on land, predatory and non-predatory fish can be found underwater, where the natural balance is being threatened by anglers.

Carmen, the Spanish mouse, now also has an idea to get rid of Lu's hiccups. Will she have more luck and finally be able to help him?

Alina meets Paula to ask her a few questions about her life as a student. Paula tells us what she is studying and what a typical day looks like for her.

Luis can't stop thinking about the case. In the morning, he has found the solution... In the meantime, father and daughter set about retrieving the loot from the ferry.

A few very special insect species can be found around the Feldberg Lakes. Otters and other water creatures also live here, and the full moon seems to have a special effect on them.

Caruso has an idea: Maybe singing will help against the hiccups. The three friends are happy to give it a try.

In this segment, we find out that the thieves are in a very desperate situation. Meanwhile, Nina is heartbroken, and Max doesn't know how to face the fact that she's leaving town. Additionally, Jessi is annoyed with Luis, who is now spending all his time with Ceyda, the girl from the ferry.

This part is about the offspring of the various inhabitants of the Feldberg lakes. How do the parents behave after the mating season? How dangerous is life for the various species, and how do they protect themselves?