The federally supported research project „Tomatenfisch" breathes life into the concept of sustainability. Integrating fish and vegetable gardening in the city center makes economic, ecological, and social sense. For years a subject of research, it's now on the verge of market viability. Sehr interessant!

Eva shows us remains of the Berlin Wall, which separated the western and eastern districts of the city of Berlin for over 28 years.

"Schwarz zu Blau" ("Black to Blue") is a song from the German singer Peter Fox from the band Seeed in which he sings about the grittier side of Berlin.

Matteo is found relatively quickly, but it causes Max, Nina, and Emma to miss an appearance of the culprit. When photos of Madeleine are posted on the internet, it's time to take action. Luckily, the young detectives know who might have the information they need.

Timo Uetz has dropped out of college to do an electronics apprenticeship. Now free from the stress of taking exams and writing term papers, he's earning his own money. Many young people today in Germany are trading their theoretical courses for practical apprenticeships. Sehr interessant!

Volunteer firefighter Michael Morano shows us the equipment the fire department in Heidelberg uses to save car crash victims trapped in their vehicles.

After observing up close the birth of skeleton shrimp in a small aquarium, Florian and Natali go diving off Heligoland in search of nocturnal marine creatures. Faszinierend!

This clip was created under the auspices of the pilot project "Weil wir es wert sind!" ("Because we're worth it!") of the Rain Forest Foundation OroVerde! Its purpose is to create awareness of the relationship between the rain forest, CO₂ emissions, and climate change!

Mark Forster is a German singer-songwriter. Check out his great performance of "Bauch und Kopf" ("Stomach and Head"), a song about restlessness and indecision.

When Nina finds out that her brother Matteo has disappeared, she and her detective friends form a search party.

On one of his ocean adventures, Sinbad the Sailor learns what true riches are. A tale from One Thousand and One Nights, the definitive collection of stories from the Islamic Golden Age.

Volunteer firefighter Michael Morano describes the structure of the fire department in the city of Heidelberg and shows us the equipment on board a fire engine. He then discusses the advancements in technology that help put out fires quickly and efficiently.

Because of its rocky subfloor, a unique marine ecosystem has sprung up off Heligoland. Florian and biologist Karin Boos take a closer look.

Sandra puts "her" teacher Herr Schniedelwutz through the rounds as he tries to explain to her that Hitler is not the current president of Germany.

Alina and Sabine show us how to make apple pancakes — German style!

Bastian is the guest star at the grand opening of Ralf Richter's new Nepali restaurant. Probably not a good idea. Viel Spaß!

A blast from the past: With his single „Was soll das?" ("What's This All About?"), German musician Herbert Grönemeyer reached number three on the charts in 1988. Viel Spaß!

Madeleine continues to be blackmailed, but Nina, Emma, and Max are on the case. Meanwhile, Matteo leaves the house and runs right into the main suspect.

Singer-songwriter Tim Bendzko sings his hit single "Nur noch kurz die Welt retten" ("Just Briefly Save the World") live at Radio Hamburg. Viel Spaß beim Zuhören!

Yabla's own Cettina takes us to Majolika Ceramic Works in Karlsruhe. In part 2, we look at ceramic versions of some animals that the nobility liked to hunt.

With almost no wind at all, the weather is ideal for Florian and Natali to join scientists from the Heligoland Biological Institute on a dive, where they observe porpoises and other marine animals in their protected habitat. Höchst interessant!

Despite Olaf's worries, Marie is found, and the other loose ends are tied up as well in the conclusion of this episode.

You can order Andreas Bourani's album from iTunes or from Amazon.

Reporters from the German magazine Auto Bild are visiting the annual International Auto Show in Frankfurt. Here, they show us which cars were the tops and the flops - and tell us why. Schaut mal rein!