World of Winx

After a failed attempt to nab the strangely elusive Talent Thief, the Winx select singing waitress Annabelle to be their show's first contestant.

Bloom has a dream where she finds Annabelle in a forest. When they are called by Wow! to find another talent, the Winx split into two groups: Bloom, Flora and Tecna pretend to be sick so they can search for Annabelle, while Stella and Aisha have Musa dress up as their upcoming talent for their Wow! episode. At the Frutti Music Bar, Evans and Gomez interrogate Roxy about Annabelle and she warns the Winx. They regroup at the club dressing room that showcased Annabelle, and discover one of her earrings. But a mysterious portal transports them to where Annabelle is and they learn that they now have a new fairy transformation called Dreamix. Although they fight off some local monster spirits, Annabelle is unable to enter the portal back to Earth and is instead sent to another location.

The Winx's next appearance on Wow! is interrupted by a report from New York City in which a crocodile monster (Crocodile Man) has been spotted near on a boat. Flora senses that a guy named Naoki is connected to this so the Winx girls head to Manhattan to find Naoki, who tries to escape from the girls but then finds himself being pursued by Crocodile Man. The Winx save Naoki and reveal to him that they are fairies.

In the inter-dimensional world of dreams, Jim and Smee continue to secretly conspire against the Queen while being stalked by shadow creatures. Back on Earth, Bloom, Tecna and Flora try to keep a performance by Annabelle, Louise, and the other Winx girls from being sabotaged. They meet a woman named Venomya who is a music critic. After driving her away, the Winx are suddenly whisked away to the dream world where they are tasked to help the spirit of the world of dreams. They receive evolved powers called Onyrix. They aid Jim and Smee against the shadow creatures. Jim explains the background of his situation: he is Captain Hook and the world of dreams is called Neverland. There was a hero named Peter Pan who left the world and the Queen (Tinkerbell) was so heartbroken she created a world of darkness. The Winx return to Earth where track down Peter Pan's friend Wendy Darling, who now runs an orphanage in London. One of the shadow monsters absorbs some of Bloom's essence, which Tinkerbell fashions into a dark creature called Vertigo.

After finishing their joint tour with Annabelle and Louise, the Winx look over Peter's farewell letter to Wendy in which he asks her to look after their son Matt Barrie. In London, they look for Matt at the place where he worked, but he was fired. Meanwhile, Bloom is haunted repeatedly by illusions of a costumed woman named Vertigo. She is influenced to attack her friends, but is able to break free from the illusion and defeats Vertigo by accepting and embracing the dark parts of her self. But Tinkerbell is net yet done, as she calls forth the evil projection of Musa: Banshee.

The Spirit of the World of Dreams summons the Winx Club and tells them someone close to them is in imminent danger. The Winx split into two groups: Flora, Aisha and Tecna go to the dream world while Stella, Bloom and Musa continue searching for Matt. Flora, Aisha and Tecna encounter and try to fight off Crocodile Man who had been going after Jim and Smee. The fairies notice that Crocodile Man isn't really attacking back but fleeing and then waiting for them to follow. They eventually learn that Crocodile Man has been leading them to a lair where his brother Alligator had been imprisoned. But when they try to free up, they discover the prison is actually a living magical creature which ends up absorbing them into its sticky goo. Meanwhile, Bloom, Stella and Musa determine that Jim's constellation map points to landmarks in Paris, so they head there to the brightest landmark of the Cathedral of Notre Dame. Musa splits from the others and succeeds in finding Matt, but she is suddenly attacked by Banshee.