The annual meeting of Hasenburg's is about to take place: an appointment that Philipp and Lili would like to strike from their calendar. Their relatives, Uncle Herrmann and his wife Kiki never miss an opportunity to make life difficult for both of them. This year, they are trying a nasty trick to prevent the signing of the annual report, so they can drive Philipp and Lili out of the castle. Only with the detective senses of Marcus, Sam, Ben and Sophie the catastrophe can be prevented.
