Arthur is a spirited ten-year old whose parents are away looking for work, whose eccentric grandfather has been missing for several years, and who lives with his grandmother in a country house ...

Meanwhile, Arthur is still a Minimoy ... Sounds simple enough, if it weren't for Darkos, Maltazard's own son, hot on their tails.

A ten-year-old boy, 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 (Invisibles), tiny people living ...