At eleven years old, Billie is well on her way to following in her mother's footsteps, who explored space as an astronaut.

It’s Valentine’s Day at Finja‘s school, and this year, the fifteen-year old is responsible for delivering roses and letters to the other students. Everything goes to plan until, at the last minute, her little brother Malte hands her one final letter – to a male classmate.

A new chapter begins for Laura: Together with her parents and her brother Tommy, she moves to a new home. But at first the girl can't really get used to the new city and has difficulties making friends and socializing. One evening she watches a star fall from the sky. Laura rushes to the injured star's aid and takes care of him. The two become friends and the star takes Laura on many exciting adventures.

The SOKO Köln investigates the cathedral city with humor and often with hard work. Their cases take them into a variety of environments, from the Cologne clique to the terraced housing estates on the outskirts of the city.