In order to save her mountain guesthouse from ruin, Sopie plans to build a glass extension with a pool as an attraction. She comes up with this saving idea when her best friend Verena visits, who brings her brother Jan with her and who draws the plans for it. However, Sophie's permanent guest for life does not agree with these plans at all: Barthl, who would like to drive away all visitors, fears for his stable rights.

Guesthouse landlady Sophie and Barthl, her unloved stablemate for life, have unusual holiday guests come to their house. Janine Brieschke from Berlin is traveling with her three children from three fathers and her current partner “Zecke”. Barthl would like to immediately chase the capital city residents who are making a lot of noise and trampling his beloved meadows off the farm.

Pension landlady Sophie imagined her job as mayor differently: not even the garbage collection works anymore! In order to defuse the scandal, she temporarily stores all municipal waste on her own yard. The improvisation artist gets active support from Felix, who appeares virtually with a paraglider out of the blue and skilfully turnes Sophie's head. Just now, Sophie's ex-mother-in-law Brigitte is at the door. The grande dame from Paris wants Sophie to return to her son Phillippe to prevent the unsuitable young successor who, in her opinion, does not come from a good family and only wants to take over the business. While Leonie is happy about her grandmother's visit, Sophie wants to know as little as possible about her. She is amazed at the unexpected magic that the sophisticated Brigitte unleashes on her grumpy barn occupier Barthl. He buys an elegant suit and dresses up neatly to impress the elegant elderly woman. But unfortunately more uninvited guests show up.