Flo and his trusted Collie pal Lassie spend the summer at Aunt Cosma's, alongside her foster children Kleo and Henry, and her dog Pippa. When local canines start disappearing, including Pippa, Lassie rallies the kids to solve the mystery.

Twenty-year-old Joachim is unexpectedly accepted at drama school in Munich and moves into his grandparents' upper-class villa. From then on, he tries to find his identity as a young man between the world of theater and the everyday life of his eccentric grandparents.