André Wiersig has become an ambassador for the seas and shares his experiences in talks—he sees this as his purpose on earth. Now he has swum across all seven straits, the last one being the Strait of Gibraltar. What will be his next challenge?

Merle delivers the speech she has prepared for Schotty, which he finds deeply moving, and the two of them end up in each other's arms.

Having been upset by Wolf again, Mark is on the verge of turning back. But Lisa talks to him, and her words seem to have an effect.

Everything has to be sustainable nowadays, but so many claims of "sustainability" are nothing more than greenwashing. Greenwashing is only about looking green, selling products, and easing the conscious of the consumer, but not about actually working to protect the environment.

Pepe, Max, and Yara agree that there is a future for the delivery service concept. But Tarek is skeptical about the involvement of an investor.

In Germany, November to March is the season for colds. Eylin introduces us to all the important vocabulary related to this topic and shares some useful tips on how to alleviate the symptoms of the common cold.

André Wiersig is aware that most people think he is crazy, but for him, crossing the straits and swimming in the ocean is much more than just an athletic challenge.

The bus finally reaches the hut which is to be their base camp. Mark reluctantly allows himself to be helped off the bus by one of the convicts, and Lisa discovers that Rosi is anything but well-equipped for the trek up the mountain.

The crew of Starship Hummingbird are doing everything they can to make contact with the unidentified flying object. Will they be successful?

In this song, a photo album of Sido's holds memories of important events in his life, including all the ups and downs. The image of the black photo album with the silver button is a reference to the early days of his career as a rapper, when he used to perform wearing a silver mask and dark clothes.

Alina is in the northern Black Forest today and introduces us to Bad Wildbad, a pretty spa town that boasts a suspension bridge, as well as a treetop walking path from which you can explore the forest from up high!

If you were invited to have dinner with a group of Germans, would you know how to behave at the table? In this video, Eylin tells us what rules she was taught as a child.

The next person Schotty encounters is Merle, the love of his life. They talk about their relationship and mutual regret about having so little time together, but she seems to know something he doesn't.

Martin, Lisa and the boys are now on the bus headed for the mountains. Mark makes himself unpopular again, and then it turns out that they have a stowaway on board...

Now things are getting serious: The crew is getting ready to launch, and the two young pilots are eager to go along for the ride. Will they be able to persuade their fathers to let them?