First assignment for Kris' new patrol partner Daisy Petersen: The young rider Daria Karimi is found seriously injured at the Hamburg racecourse. Who wanted to get rid of her?
After a celebration among politicians, PR consultant Silvia Reuter drags herself to the hospital EKH with her husband Bastian. She has no memory of last night.
Forwarder Andreas Wolf left his bag right next to Melanie and Mattes at the coffee stand. A little later he is hit and ends up in the EKH hospital with serious injuries. The Hamburg police are investigating.
Indira Walther is brutally attacked by masked thugs in Hafencity. The Hamburg police are puzzled because the reason for the robbery sounds very adventurous.
During a routine operation, the patient Ulf Hartmann collapses under the treatment of the young emergency doctor Dr. Mila Andresen. Surprisingly, he reports against his rescuer.
An unknown woman is found unconscious at the port of Hamburg. A missing persons report helps the officials to clarify their identity: the victim is Petra Küpper, who has been missing for a year.
A baby is kidnapped. When Marcel Fechter succeeds in unmasking and arresting him as the kidnapper, he refuses to name the whereabouts of the helpless baby. The clock is ticking.
Franzi's daughter Emma falls off her horse at the riding stables and is taken to the EKH with serious injuries. The mother's concern turns to anger when she realizes it wasn't an accident.
Kris reunites with his ex-girlfriend, Lena Marx: the poker princess. She just finished her sentence and wants to start over. But that seems harder than expected.
The police officers from PK 21 are confronted with the distrust of the population: colleagues from another police station are said to have brutally attacked Enam Boadu for racist reasons.
Christmas eve. Santa Claus Hannes Kück ends up beaten up and with a broken leg in the EKH. According to him, he fell out of the reindeer sleigh straight from the sky.
The sports teacher Hannes Gollnick is pushed off a bridge and ends up in the EKH. Everything speaks for the young school dropout Timo Quandt as the perpetrator. But Nick has a different opinion.
Franzi und Nick ermitteln vom Fahrrad aus einen Überfall im Park. Ole Kern, ein reicher Makler, gerät mit dem Transmann Paul Sander aneinander und landet kurz darauf im EKH.