Season 18, episode 26. Tatjana accuses Mona of setting her warehouse on fire. Andreas assures Tatjana that Mona is not that type of woman. Meanwhile Tatjana can't find the insurance document. On the Salzmarkt: firefighter Ben informs her that a short circuit was the probable cause of the fire, and arson can be excluded. Mona accidentally hears this. Andreas discovers that the burned furniture isn't insured at all. Hendrik wants to introduce the cannabis study to peers. Divorced Hendrik gives Britta the phone number of Joe's mother. Britta tries to convince her that Lilly's birthday party means a lot to Joe, but it seems useless. The next day they have to bring Lilly in a good mood. The party starts but it is boring without Joe. Minority shareholder Gunter sees that his influence in hotel 'Drei Könige' is low. Amelie wants a new corporate identity and although she listens to the opinion of Gunter and David, she intends to push her own through. Anton forces Walter to feed the chickens. But brave Walter has a phobia for these animals. Werner offers him a fair price for the bio eggs. The school management wants a declaration from teacher Thomas after pupils placed a video of him on the internet that shows him walking in public like a drunken man. Will they believe that he was shot with a syringe filled with a sedative?
—B. Dijkhoff