Ten-year-old Matteo and his patchwork family, who have been magically shrunk to the size of Hamburg's Miniatur Wunderland, embark on the adventure of a lifetime in search of their missing grandfather. In a miniature world that has suddenly come to life, they must grow together as a family in their battle against the dangerous Ugila in order to find their grandfather and free themselves from the clutches of the dazzling ruler who wants to subjugate Miniatur Wunderland.