While Titus has a job interview at Kolinski Eppendorf, Jonas tries to find out who stole the money from his donation box in Billstedt. He questions each employee individually and uses his own interrogation techniques. Meanwhile, Lia plans a scavenger hunt for Wilhelm, with a special surprise.

Lia gets to grips with being old and falls in love with Mrs. Jensen. Jonas is going through puberty, which Thorsten is struggling with, and Titus is building an igloo. It's snowing at Kolinski's.