Bloom discovers she has magical powers on her 16th birthday, after a scary encounter with a magic creature. She is rescued by Stella and Flora, two fairies from Alfea School for Fairies and Witches.
A dark spell transforms Bloom into Dark Bloom, turning her against her friends and wreaking chaos at Alfea. And Aisha's love of dance clashes with her parents' expectations.
The Winx face their toughest physical exam yet, pushing their magic and teamwork to the limits. Meanwhile, Bloom attempts to bond with the mysterious Damien.
The Winx plan a day of adventure in Magixia, but Griselda's restrictions and an incomplete project keep them grounded... until Robin helps them sneak away.