When it becomes clear that his nephew Henri can't stay on his boat, Jan brings him to Emma's father, Hannes. Emma, however, is not happy to find that a guest has taken over her space in the attic – which also serves as the Peppercorn headquarters.

Nina's first day at school really isn't going so well, but she rejects Emma's help and doesn't tell her father what happened. Meanwhile, Emma's dad settles into their new apartment.

When a wallet goes missing in the girls' locker room, the girls immediately blame Nina, who is new at the school. Luckily, Emma and Max are already on the case.

In the first episode of Season 9 of Die Pfefferkörner, Emma is the only one of the pre-teen detectives left at school. Will she be able to keep the group going?

As the whole precinct celebrates the safe return of the Miriam's baby, Dirk receives a surprising inheritance from Kutte...

With his parents reunited, Sascha makes one last wish – and Johannes and Marion are suddenly brought together, just in time for Christmas.

Dirk goes to wake Kutte, only to find a very sad scene. Meanwhile, Harry and Henning wrap things up with the stolen mail incident.

Johannes, Konstantin, and Phillip work the Christmas sale together at Johannes's pet store, making sure that all of the animals leave with loving new owners. Finally, only the parrot remains, which then goes to a very special home...

Kutte refuses to go to a shelter for the night. Miriam finally turns up at the police station looking for her baby, and they all head over to her father's... only to discover that the baby's no longer there.

Henning and Harry discover that Potowski did in fact steal the letters, then find him in grave danger. Dirk reaches a decision about Kutte, and Miriam realizes that trusting her father with her newborn was a very bad decision.

Marion tries to talk to Johannes, but he's too preoccupied with reuniting Sascha's parents – and she's getting the wrong idea about his relationship with Sascha's mom. Sascha's father has gotten some rest and is ready to help out in the pet shop, which is good because there's a Christmas sale and the store is an absolute zoo!

Miriam's mother confronts her about the baby and refuses to accept her decision to keep it, eventually kicking her out. Meanwhile, Harry begins to suspect that the building manager has something to hide...

Marion overhears Johannes speaking candidly with Sascha's father and realizes she has still has feelings for him. When her boyfriend Hans-Peter comes to the door, she has to tell him she's no longer interested.

After Sascha's mother tells Johannes about the bench on the canal where she and Phillip first kissed, Johannes finds him sleeping there and in very bad shape. He brings Phillip home and tries to console him. Marion, meanwhile, overhears everything through the thin wall between the apartments.

The team desperately searches for the young mother and her baby, who is in need of medical attention. Dirk is torn as to whether he should adopt Kutte, because he isn't sure he can afford it.