When Phobos, the evil prince of Metaworld, sends his minions to steal the birth records of all 13-year-olds in Heatherfield, the W.I.T.C.H. team members faced the uncomfortable possibility that any one of them could be the long-lost sister of their sworn enemy. Join Will, Irma, Taranee, Cornelia and Hay Lin as they battle the forces of Meridian for four exciting episodes featuring danger, adventure and one memorable birthday party.