The Magic Dimension's future is hanging by a thread. Bloom and Sky lead the Sovereign Council in agreement to unite and fight Tritannus. But first the Winx must find the Breath of the Ocean in order to save a polluted bay.
Daphne's parents hold a welcome home party to celebrate her return. But the event is interrupted when the Trix send the Beast of the Depths to attack. It's up to the Winx to find the Inspiration of Sirenix and save the party!
The Winx go to Lynphea College for special training with the Specialists and Paladins, skilled warriors. When Selina sends the Treants to attack, the Winx are stripped of their powers and forced to return to Alfea.