Ten-year-old Arthur, in a bid to save his grandfather's house from being demolished, goes looking for some much-fabled hidden treasure in the land of the Minimoys, a tiny people living in harmony with nature.
With Maltazard now 7 feet tall and Arthur still 2 inches small, our hero must find a way to grow back to his normal size ans stop the Evil M once and for all, with the help of Selenia and Betameche.