Director Zlata Potancokova Belli is behind this engaging, colorful animated tale. The story follows young Ali Baba who, with his little sister, embarks on a seafaring journey in search of his missing father and brother. Aboard a huge ship owned by the Sultan, they are hit by a tremendous and violent storm, and end up shipwrecked on a desert island.

Ali Baba, a young woodcutter, with the help of his friend Miseria - a talking donkey - provides for his poor family. Smart and ambitious he works hard to get rich and to be able to marry his only love: Alia, the Sultan's daughter.

The archenemies of the Winx Club, the Trix witches, team up with the evil nymph Politea and find out that, to defeat the fairies once and for all and become invincible, it takes very little: a Pearl hidden in the Deep of the Infinite Ocean! As small as powerful, the Pearl of the Depth gives enormous powers to those who possess it! For the Winx there is not a minute to waste: how will they stop the plans of their enemies before it's too late? Get ready: the most dangerous mission of the Winx is about to begin!