Arthur is a bright, clever and lively 10 year-old who spends his vacations at his favorite grandmother's house. And talk about vacations. Inside her garden there is a world invisible to the human eye. The world of - the MINIMOYS. One day, Arthur discovers a secret passageway that enables him to enter their world and become a MINIMOY himself. In fact, he becomes THE MINIMOY SAVIOR, helping these minuscule little people fend off all sorts of danger, including invasions by the armies of Maltazard, the MINIMOYS' sworn enemy, a despot who rules over the SEIDES. A dreamer and a bit of a loner, Arthur suddenly becomes a fearless hero, and along with his friends Selenia and Betameche, he is going to lead the little people to freedom. But with a trio like this, the road to victory is going to be full of surprises.
Following a crazy stunt, Arthur is celebrated as a hero and receives a reward from King Sifrat. Arthur starts boasting to Selenia. This is not at all to her liking.
Darkos has a cold and asks Crackedtooth to sell him a remedy. However, the witch's risky potion makes him completely invisible. He uses the opportunity to enter the Stump without being seen.
Arthur has forgotten both Selenia's birthday and her present. To make up for it, he uses his magic sword to grow the prettiest flower in the seven kingdoms.
Darkos has made the ants furious by making their queen disappear. To avoid them destroying the seven kingdoms, he leads a rescue operation with some unlikely allies.
Thanks to a blunder by Betameche, Miro has no more Gamool Drool to make the Full Moon Tarayuk. The Minimoys simply must get some more before the full moon!
Arthur loses his magic sword in the countryside. He absolutely must find it. However, it is Margoul who finds it first. Magoul goes to Maltazard to sell the sword at a crazy price.
