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.
The Winx train in Aisha’s new gym to prepare to fight without powers. Afterward, they return to Lynphea to fight the Treants and a flying Cloudtower. Flora saves her sister Miele, and gains her new transformation Bloomix!
Aisha and Stella work together as the Winx defeat the Treants, and earn their new Bloomix Power. Later, the Winx and Daphne tour the Golden Auditorium where they come face to face with a group of not-so-melodic sprites!