Frederike Bader, a former policewoman from Berlin, currently living in witness protection in Passau, is supposed to help her ex-boss Jochen Mohn - formerly a witness protector, now head of the Passau CID - in a private matter.

They failed as a couple, but as parents Julia and Tom share custody of their daughter Anni after their divorce. Driven by her hurt feelings, Julia begins to systematically alienate the girl from her father.

Forced into homelessness, Melli, a single mother, takes her son Ben to a forest. There they build a makeshift camp, set back from the paths so that no one can find them. They think this solution is only temporary. Melli firmly believes their lives will improve soon, a feeling that is strengthened when she is employed as a trainee flight attendant. Unlike Melli, Ben actually enjoys the exciting camp trip. Life under difficult conditions further strengthens the bond between mother and son.

Katharina Tempel, a Hamburg detective superintendent, is investigating the death of a young woman. She discovers that the case has links with her private life: Lena, the victim, turns out to be the sister of Marita Rubesch, the psychologist with whom the commissioner and her husband are undergoing couple therapy...

Like most singles of his generation, Tim has a "problem": he is apparently unable to have a relationship. But when he falls in love with his female reflection, Ghost, he suddenly finds himself on the other side of dating-hell.

In order to get her dream apartment, party-loving Nina has to score points with a particularly family-friendly landlord. To do this, she borrows her sister's kids without further ado.