Dr. Hansen decides to drive to the village to get the key. At the same time, Jonas sets off to deliver the key to the new vet family, along with a cake as a welcome gift.

Mirko tells Daniel that Lea Stolze, the murder victim, was his ex-girlfriend. And now his gun has gone missing too... How will Daniel react?

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.

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.

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.

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.

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.

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?

Nina has to move to Italy with her family and has had a hard time saying goodbye to Max and her friends. Suddenly, the Peppercorns have a pickpocket to catch.

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.

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...

Martin chooses three boys to go on the mountaineering expedition, and Rocky, at least, is immediately enthusiastic about the idea. However, Martin withholds one important detail from them at first...

Pierrot and Dickie have completed their training as spaceship pilots and are now looking forward to new challenges. Soon, the two arrive for their first mission, which is to identify an unknown flying object.

Lisa asks a friend from her university days for help, but he is not enthusiastic about her idea to organize an expedition up to the Gran Paradiso.

Lisa is reprimanded by her superior because of the promise she made to Mark.