W.I.T.C.H. is an animated television series based on the Italian comic book series of the same name.Despite their acronym, the five main protagonists are magical but not actually witches.
Like the comics, the series follows five ordinary girls: Will, Irma, Taranee, Cornelia and Hay Lin who become endowed with magical powers and become the "Guardians of the Veil". It was shown on CBBC in the UK.
The Guardians must save Meridian from the evil sorcerer Phobos and Cedric who are searching for Phobos' sister, the long lost princess of Meridian. It is later revealed the princess is Cornelia's best friend Elyon, and the Guardians then set about saving her from Phobos.
When Meridian is freed from evil and Elyon takes the throne, a new mysterious sorceress named Nerissa frees Phobos' top henchmen and reforms them as the Knights of Vengeance. Once the Guardians learn more about the sorceress and her evil plan of reuniting former Guardians, they are able to defeat the Knights only to have more powerful Knights of Destruction, plus the old Guardians attack them.