In the kingdom of Andros, Aisha's Uncle Neptune plans to make his son Nereus Crown Prince. The ceremony is disrupted when Nereus' twin, Tritannus attacks and is sent to the prison of Andros where he meets the Trix.

Tritannus has his cousin, Aisha, in his clutches. She is a critical part of his plan for dimension domination. Could evil possibly prevail?

All the fairies return to Alfea, where they learn about the Sirenix book and powers that must be obtained. They also fight the Trix!

Sky has lost his memories during battle and Crystal tries to heal him but fails. The book of Sirenix is discovered but the witches putes a spell on it.

The Winx and the Trix race to find the Lilo, a magic plant, which will bloom for the first time in centuries. When the people of Gardenia stand up for the Winx, the Winx are able to defeat the Trix and the Lilo blooms.

The Winx compete in the Challenge of Graynor, in hopes of winning a power that will help them open the Book of Sirenix. Will they be able to identify and protect Graynor's most beloved creature?

The Winx face their first challenge of Sirenix and obtain the gem of self-confidence. Meanwhile, the Trix and Tritannus' mutants attack Gardenia in order to spread more pollution.

A musical riddle from the Sirenix book sends the Winx to Melody, but Tritannus throws a monstrous wrench in their plan. The Winx's quest for the two remaining gems continues.

With Tritannus on their tail, the Winx travel to Zenith to obtain the Gem of Empathy. Musa and Flora stay back to watch over a very temperamental Stella. Time is running out for the Winx to complete their quest.

When the Trix send terrifying Ice Dragons after Bloom, she is stuck at Alfea for Christmas. It is up to the Winx to defeat the Trix and bring their own holiday cheer to Bloom. Can they get Bloom home in time for Christmas?

Bloom, Stella, Flora, Musa and Tecna are back with more otherworldy adventures in Winx Club: Revenge of the Trix! Bloom's home on her first school break, but the weird dreams she was having back at Alfea have come with her.

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?

Tritannus uses Oritel and Marion as bait to learn more about Sirenix from Daphne. With their three gems and the power of Sirenix at their fingertips, the Winx prepare to enter an incredible and new frontier as fairies.

The Winx start a movement to clean the trash from Gardenia's beach. With their new Sirenix powers, Tritannus and the Trix head to the Emperor's Throne, but quickly discover that not everything is as expected.

To activate the Emperor's Throne, Tritannus must obtain the seals for the throne's missing pillars. When he takes the seal from the Pillar of Light, the planet's light is fading away, and it is up to the Winx to restore order.

Time is running out before darkness envelopes the Magic Dimension. All eyes are on Stella, the Fairy of the Shining Sun, to help restore light and save her ailing father.

As Daphne is held captive by Tritannus, she tries to warn Bloom of his dangerous plans. In Gardenia, Mike and Vanessa's attempt to clean up Garbage Island is disrupted when Tritannus sends a monster to attack.

Tritannus sends a hungry beast after the Selkies so that he can get to the Pillars. It's up to the Winx to apply their training and use their skills to save the Selkies and stop Tritannus.

Tritannus takes the Seal from the Pillar of Balance. The planets are shaken, and Melody's Singing Whales disappear. In order to restore the Pillar and return the whales, the Winx must fight Icy and Tritannus.

Musa relies on a childhood lullaby to restore harmony in the sea. The Winx must now hone their understanding of the natural world and it's creatures to defeat Tritannus.

The Winx and Specialists plan a proper face to face date for Tecna and Timmy. How will the texting couple handle a romantic dinner for two? And will the Winx be able to fare without the help of Tecna?

The Sovereign Council must agree on how to protect the Magic Dimension. King Cryon of Zenith plans to look out only for his planet using an army of robot droids. But are the droids truly the best answer?

Daphne tells Bloom about a nymph Politea, who is under a dark spell. Politea's Sirenix power could be what Tritannus needs to become Emperor of the Infinite Ocean, but Darcy and Stormy are determined to keep this from happening.

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.

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?

Tritannus has his cousin, Aisha, in his clutches. She is a critical part of his plan for dimension domination. Could evil possibly prevail?