S3, E11: Lisbeth Gruber is back from her wellness weekend and has brought a visitor: the restaurant critic Klaus Hellmann graces the Gruber farm with his presence and the two outdo each other in their infatuation. Martin, Hans and Lilli don't quite know how to react to the newcomer and most of all to Lisbeth, who is bubbling over with youthfulness. They don't have much time to adjust to this novel situation, because the brothers are called to an emergency in the mountains. Mountain guide Erik suffers from an inexplicable tremor; he was unable to prevent the fall of a climber.