Casual single man with daughter meets smart single parent with son - sounds like a good start! Unfortunately, the omens are anything but favorable: neither of them feels like getting to know each other today of all days. The perfectionist chef is under pressure because she wants to serve up the best spaghetti bolognese of her life at a test cooking session for her dream job that evening. Philipp has to prove himself in a difficult group at his new job as a tourist guide. An aerial bomb that paralyzes Cologne's city centre means extra stress to the power of three for the two of them! The single parents spontaneously join forces: She looks after her seven-year-old son Fritz and his daughter Miriam, who is the same age, in the morning, while he takes care of the children in the afternoon.

While his wife Juliana commutes to Zurich as a doctor, Freddy is at home in Constance looking after their 13-year-old daughter Zoë and little Niko. Freddy believes that dropping out of medical school to work as a nursery teacher is the best decision of his life. When Juliana is offered the position of head of pediatric oncology, she wants to move to Zurich with the whole family. For her, this would mean an end to the exhausting commute, finally more time with her family and a higher income. Freddy, however, doesn't want to leave his familiar surroundings. Even he is not entirely without ambition in his poorly paid job, because Freddy has his own educational ideas - and has the prospect.

Jonas, a sales professional from Frankfurt, finds the best solution to every problem at work. In his private life, however, there is something that can still be optimized: being a father! When his daughter Laila, who is growing up with her mother Shari in Hamburg, demands more time and closeness from him, he has to readjust his life, much to the chagrin of his girlfriend Kim.

A parcel carrier who has nothing to do with Christmas accidentally crosses paths with a petty thief and a mysterious little boy who doesn't speak. Nelly is stunned when Filou Sonny steals two bottles of whiskey and a vintage car from the petrol station where she has a second job. Nick, who suddenly appears between the shelves and doesn't say a word, distracts Nelly during the theft. Since she has to assume that Nick is Sonny's accomplice, she grabs the boy and takes him with her on the chase, receiving support from the elderly cab driver Gesine, who had just filled up her car at the gas station. When Nelly discovers the stolen vintage car by chance outside a villa, she sends Gesine back and asks her to look after the filling station while she is away.