The Winx and the Specialists return to study the Water Stars. Valtor challenges the school directors to a duel, and makes Cloudtower vanish! Bloom comes face to face with Valtor and daunting information about her real parents.
Back on Andros, when the Winx find the cure for Aisha's blindness, Aisha must choose between her sight and saving Queen Ligea. Will Tressa, Aisha's cousin, find the courage to lead them to victory?
The time has come to bring Tritannus and Icy down. An epic battle ensues with all of the planets' forces uniting as one. Bloom and the Winx must stop Tritannus before he activates the Emperor's throne. But will it be too late?
Valtor and the Trix take over Cloudtower, ordering all of its students to attack Alfea. The fairies of Alfea must band together to save their school. Meanwhile, Miss Faragonda comes face to face in a battle with Valtor.