After the Peppercorns wrap up the case of the stolen wallets, Max sets off on his bike to his grandmother's food truck – and has an unfortunate encounter along the way.

Henri and Emma finally chase down the thief – and prove that Nina didn't steal any of the wallets.

Here's a flashback to when Frankfurt Airport was buzzing with activity. The airport opened its doors in celebration of Mother's Day, offering special activities and prizes. Despite strikes at the time, the transportation industry was doing quite well.

How do coral reefs form, and what role do they play for underwater creatures such as fish? In this video, you can see some fascinating life forms and how they interact with one another.

After a second wallet is stolen, everyone becomes even more suspicious of Nina. Max is still convinced that she didn't steal anything, and while he and Emma are in math class, Henri stands watch outside the gym.

The German federal state of North Rhine-Westphalia has the biggest COVID-19 outbreak in Germany, and is therefore introducing stricter measures to ensure social distancing. Among other penalties, restaurants that stay open will have to pay up to 4000 euros in fines, while individuals who meet in groups will have to pay 200 euros.

Yabla is an efficient and entertaining way to learn a new language! Learn about its features in this video.

We don't know exactly how and when life began on Earth, but the answer probably lies in the depths of the ocean: It is here that the first unicellular organisms evolved.

A private lab in Germany is working to create a vaccine for COVID-19 as quickly as possible. The US and German governments are already vying for access to the results.

Cettina reads Part 2 of "Das Aschenputtel," a fairy tale known in English as "Cinderella." (By the way, you'll notice that the German word for Cinderella is neuter – which means that "es/ihm" here translates to "she/her.")

Chancellor Angela Merkel discusses the essential actions the German government has taken to slow the spread of COVID-19, including shutting down social activity and tightening border controls. The people's responsibility, she says, is to remain calm and not engage in panic buying (such shopping trips are referred to as die Hamsterkäufe in German) when it comes to groceries.

Angela Merkel explains that social distancing will help to slow the spread of COVID-19, acknowledging how difficult it is to not be able to visit loved ones in uncertain times. She also discusses the government's responsibility to consider all possible approaches and keep the public informed.

In a rare televised address, Chancellor Angela Merkel urges the public, directly and in plain language, to take drastic steps to prevent COVID-19 from spreading in Germany. She calls the coronavirus one of the greatest challenges the country has faced.

Fear of the coronavirus has caused many people to stock up on food and supplies. Fortunately, German grocery stores have been able to keep up with the increased demand without any problems. Copyright: Deutsche Presse Agentur [The German Press Agency]

Singer Mark Forster wonders: Should you get out and see the world, visiting as many countries as possible... or stay home to be close to someone you love?