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.

Johannes and Konstantin try to find Sascha's father. Then Sascha's mother comes to visit Johannes to compare notes – and accidentally rings Marion's bell.

While Lothar, Dirk, and Nicki contemplate life and death at the station, Miriam's baby disappears from the hospital and is known to be in grave danger. Meanwhile, Harry and Henning try to get to the bottom of the mail theft case that has caused a dispute between two neighbors.

All is lost for Johannes: He's unable to convince Marion that he didn't walk out on her, and even Sascha won't speak to him anymore. Johannes takes it upon himself to find the boy's father.

Miriam's mother finds out that Miriam skipped school and locks her in her bedroom. Meanwhile, Henning and Harry investigate a fight between neighbors, and Dirk deals with Kutte.

Marion and Johannes share a bottle of wine together, and Marion admits that she has feelings for him and sometimes wishes they had never split up. But their moment is interrupted when Sascha appears and has a terrible accident.

The young mother cannot be found anywhere, and we learn that she is in high school and still lives at home. Kutte is found camped out in front of the precinct, despite Dirk having secured him a place to sleep at the night shelter.

While Johannes tries to win Marion back, Sascha's parents continue fighting. He overhears his mother accusing his father of cheating – and his father denying it.

Katja and Ben are part of a rare and special moment that then goes terribly awry: a woman gives birth to a baby boy before disappearing suddenly.

Dirk tries to console and help a homeless man named Kutte whom he has known for 15 years. While on patrol, Ben and Katja come across a young woman buckled over in severe pain.