"Z is for Zenith" is the twenty-sixth and final episode of season 2 and the fifty-second episode overall of W.I.T.C.H. It first aired December 23, 2006. This was the final episode of W.I.T.C.H. to date.
After Cedric swallowed Phobos, he decides with Miranda to seek revenge on everybody. Cedric decides to attack Heatherfield and he orders Miranda to destroy the Aurameres. W.I.T.C.H. and Matt leave to Earth.
As Cedric leaves, Raythor reveals he, Sandpit and Gargoyle are good. Miranda tries to destroy the Aurameres, but she's stopped by Caleb, Blunk, Raythor, Gargoyle, Sandpit and Luba. Meanwhile, Cedric arrives at Heatherfield and Matt, Mr. Huggles and Napoleon turn Heatherfield into a magical area to prevent anyone from seeing Cedric or W.I.T.C.H. The battle starts.
C.H.Y.K.N., Elyon, and Yan Lin's Altermeres tells W.I.T.C.H. the only way to defeat Cedric is "touching" the Four Dragons and the nymph Xin Jing. W.I.T.C.H. touches the dragons and defeat Cedric. Phobos, Elyon, C.H.Y.K.N. and Yan Lin's Altermeres leave Cedric's body and Phobos' scepter is destroyed. Nerissa leaves the harmony and frees herself from the crashed scepter.
Nerissa recalls the scepter Seal of Nerissa and daydreams about taking over all worlds and taking from them the hearts. This forces Nerissa returns to the scepter and free the others. Nerissa's scepter turns into Heart of Meridian and Heart of Zamballa again. W.I.T.C.H. lost their humanity by turning into full elemental form; however, through Matt's, Elyon's, Cassidy's, Halinor's, Kadma's and Double Yan Lin's efforts, their humanity is back and Matt, Mr. Huggles and Napoleon break the spell.
Elyon reabsorbs the Heart of Meridian's power, and Julian takes the stone that was the Heart of Meridian (with Nerissa inside) and takes it to Megenzjan Falls. All villains return to their jail cells. Meridian has once again become good.
Elyon returns to her throne and Raythor decides to be her guardian. Halinor and Luba release the Oracle, Althor, and Tibor. Kadma gives the Heart of Zamballa to Ironwood. Cassidy is reunited with her mother. Yan Lin introduces to her family her "twin sister Mira", who's really the Altermere. W.I.T.C.H. spends all their time with their boyfriends.
In the B-story, W.I.T.C.H. meet the computer teacher Pr. Raphael Sylla, who in reality is an agent of the FBI. Raphael is seen earlier in the episode with Riddle, leaving a cliffhanger for the as of yet non-existent Season 3.
- This is the final episode of W.I.T.C.H.
- This episode marks the second time that the Guardians are shown in their Zenith forms (the first time was in E is for Enemy).