The celebrations for the beginning of the new year are underway at the Alfea School of Fairies, when the party is interrupted by Icy, Darcy and Stormy, the wicked Trix. Without Bloom, the Winx are forced to deal with the disruption caused by the witches who, after ruining the party, steal a very powerful and mysterious object. Meanwhile, Bloom is on Domino, where she is enjoying the best moments of her new life as a princess. She has finally found her parents and Sky proposes to her.
But all that glitters is not gold, and the three Ancestral Witches are back to torment Stella, Aisha, Tecna, Musa, Flora and Bloom. Moreover, Erendor, Sky’s father, forbids his son to marry the princess of Domino. A dark secret weighs heavily on the Eraklyon kingdom and it is now time for Sky, legitimate sovereign of the kingdom, to discover what it is. Meanwhile, with the help of the Trix, the Ancestral Witches have managed to find the Tree of Life that keeps balanced the positive magic and the negative magic. With a very powerful spell they break this balance and absorb all the good energy from Magix. Bloom and her friends are therefore left without powers and are forced to face again the Witches, the symbol of all evils.
Will our heroines manage to find the way to restore the balance in the Magic Dimension? And what is the secret that keeps Sky and Bloom apart? Will their love survive to this new test? With hilarious gags and moment of great magic, the Winx will fly once again.