After a photo of Elias is released, Dirk has to try to find him however possible. Meanwhile, Nina and Paul try to take care of the financial issues they are each having.

In the second part of this mini-series, Nico, another physiotherapist, talks about what makes this practice so special and why they get so many good reviews. Paula also wants to know how Nick came to choose this particular profession. It's an interesting story!

With the help of surveillance camera footage, the officers from the 14th precinct discover that someone rode the victim's bicycle and then got on a train. Of course, this is Elias, the young man Dirk is trying to protect.

We are constantly exposed to substances that are harmful to our bodies, such as toxins in food, alcohol, exhaust fumes, and cosmetics. On top of that, there are medicines and other chemicals. How does the body deal with these?

In this video, you'll learn important words and phrases for arranging to meet someone, as well as for canceling an arrangement.

This video gives you some insight into the services offered by one of Karlsruhe's physiotherapy practices. We explore the facilities with Paula and Dirk and get to know the staff.

Dirk Matthies is still puzzled as to where Elias got his cell phone number. The detectives from the homicide squad come to his office to ask about it and their conversation is not exactly amiable.

The dispute over the use of glyphosate continues: According to the WHO, it is probably carcinogenic, but German farmers will be allowed to continue to spray it onto their fields.

How do you approach strangers you want to get to know and introduce yourself? Eylin shows you what you can say in professional situations or at a party.

Mirko, an acquaintance of Daniel's, turns up at the police station with a question concerning a "friend of his" who has lost a gun... At the crime scene, two detectives make it clear to the other officers that they will now be taking over the investigation.

In this video, you will learn some important basic questions and answers. Have fun practicing them!

Today we are out and about with Alina in Düsseldorf, the state capital of North Rhine-Westphalia. Join her to find out what this city has to offer!

Nina and Paul arrive at the scene and find a man's wristwatch near the victim, who is around the same age as Paul's daughter. She still has her wallet, but it looks as if her cell phone has gone missing.

Even with high-tech running shoes, lots of people still suffer injuries. Barefoot running could be the solution! Knee, hip, and back injuries are often caused by an incorrect gait, which running shoes tend to exacerbate. So should we run barefoot like our ancestors?

In this clip, Eylin teaches you even more expressions that you can use in a simple conversation. For example, you'll learn how to express astonishment or what to say when you're curious about something.