W.I.T.C.H.

In Meridian, Elyon is at the apogee of her powers and excitedly prepares for tomorrow’s Coronation. But Phobos and Cedric talk out of her earshot: there’s something afoot that Phobos isn’t telling his sister. Meanwhile in Heatherfield, Caleb has finally figured out with the Guardians’ help a way to get his men across the Meridian Plains unseen. The final battle is about to begin.

Caleb is making plans for the escape of the rebels captured by Phobos in the abortive battle of the Meridian Plains . With Blunk’s help, he tries to map the tunnel system to the castle’s dungeon. But the reconnaissance mission goes wrong and Blunk is left behind on Meridian. Looking for the Passling, Caleb and the Guardians find and save a Castle Guard wounded in battle and left for dead by Cedric. When the Guard, Tynar, sees Earth and the girls’ concern for his recovery, he switches loyalties and promises to guide them through the complex subterranean passageways into the dungeons where the rebels from the uprising are being held. The daring raid frees the rebels, and Tynar begins spreading the word among Phobos’s guards that the other side of the Veil is not as they’ve been told. Back in Heatherfield, Will impulsively kisses Matt, who has offered her a pet dormouse named Mr Huggles earlier in the episode.

When Caleb's best friend, Aldarn, accidently becomes hypnotized by Elyon into signing a peace treaty, Caleb has to fight him for the position of leader. Meanwhile, after leaving their baking duties for the school bake sale to Blunk, the guardians enter a trap filled with Larveks and they must defeat them before the rebels get eaten by them.

The Guardians are stunned to learn that their math teacher Mrs. Rudolph is the Meridianite nanny who brought Elyon to Earth twelve years ago. She opened a portal with the Seal Of Phobos... but lost it during the escape. On the run from castle guards, Caleb and Blunk split up. Blunk hides in a sewer where he finds The Seal where it has lain undiscovered for twelve years. Not knowing what he has, Blunk begins waving the Seal around, opening portals all over Heatherfield, which the Guardians rush to close. But the girls don’t realize that every time they do, they’re cutting off an escape route Caleb needs to avoid capture. When the Seal of Phobos encounters the Heart of Candrakar the two amulets battle and the Heart ends up absorbing the talisman and all its powers. Thus empowered, the Guardians are able to help Caleb escape from the work-yard in Hoogong Gorge. Back in Heatherfield the group uses the Seal to open The Book of Secrets, revealing for the first time Phobos’s plan for draining his unsuspecting sister’s powers and turning her into a Whisperer, imprisoned within a Black Rose forever.

Cedric uses a magic horn called the Horn of Hypnos to make everyone who hears it into obedient zombies called trancemarchers. Unfortunately, Guardians of the Veil, namely Hay Lin, are no more immune to its effects than anyone else. How are the girls going to break Cedric's hold on their friend and what is being done about Phobos' Book of Secrets that Caleb swiped from their last trip into Meridian?

Will and the rest of the girls try to tell Elyon the truth about Phobos and Meridian, but that becomes very hard when Phobos teaches his sister to make ghostly images of herself to confuse her former friends and the rebels. The real Elyon is upset that she didn’t bring her sketchbook from Earth so Phobos sends Lurdens through a portal to her old bedroom to fetch it. But the creatures also trash a stash of chocolate, the scent from which Blunk is able to follow to Phobos’s and Elyon’s secret Meridian mountain hideout. The Guardians and Caleb search for Elyon under the mountain but are ambushed by Lurdens. Forced into the open, they battle Cedric on the mountainside before returning to Earth, no closer to warning Elyon of the terrible danger she’s in.

It's parents' night at the school, and nobody (except Hay Lin) seems very excited, especially Elyon. She feels that Cedric is the only one who understands her, not her friends, and especially not her family. When Elyon does her family tree research, her parents do not have any pictures of her other relatives. Elyon thinks that it's because they don't care about her but it's for a whole other reason. Cedric reveals to Elyon, that her parents are beasts, and that she is the Princess of Meridian. Elyon is so confused but she goes to Meridian, her original home.

Elyon is Phobos's sister and the true heir to the throne of Meridian, she just doesn't know it yet. Vathek overhears Phobos and Cedric's plans for capturing her and hurries to tell Caleb only to end up running for his life when Cedric comes to stop him. Vathek and Blunk escape to Earth with Cedric and a worm-looking monster hot on their heels. Vathek relates the news to Caleb who relates the news to the Guardians and they go after Elyon to keep her safe from Cedric's clutches, however, they have to hold off the Larvek from eating Vathek and Elyon slips off in a bad mood after her new beau gives her the heave-ho. She heads back to her place of comfort: Cedric's bookshop.

While at the Art Museum trying to capture the feeling of the middle ages for their school carnival, Will, Taranee, Cornelia, and Hay Lin get sucked into the painting they are studying. Unbeknowst to the girls, Phobos knows they are trapped in the painting and sends Frost the Hunter after them, but the girls escape with the help of Elias Van Daal, the imprisoned artist of the painting. Meanwhile, Irma, Caleb and Blunk have to stall for time at the Medieval Carnival and figure out how to get the girls back to Heatherfield. Anachronistic hell breaks loose when Cedric and his goon platoon enter the painting to get the Heart of Candrecar and girls have to paint like mad to get away. Irma and Caleb rescue the girls from the painting and manage to salvage the school carnival thanks to the number of people they brought back with them from the painting.

Tired of having their supply lines constantly ambushed by the rebels, Phobos and Cedric start a rumor that the Seal of Phobos has been found in order to flush out the spy. The seal of Phobos is an artifact much like the Heart of Candracar in that it can open up places like the Infinite City or The Veil. Caleb, who is stuck on Earth after trying to use a portal without telling the Guardians where it is, hears the false rumor and falls for it, eventually getting captured by a living quicksand pit at Torus Filney. Meanwhile, the girls are faced with the prospect of having to perform a play based on a myth of their choice thanks to Hay Lin's non-consentual group sign-up. The girls choose the origin story of the Heart and subsequently their powers but before the curtain can go up, Grandma tells them about Caleb's disappearance and capture. Stuck for a plan of action, the girls are enlightened to another of the Heart's powers: the ability to clone the Guardians. While the clones put on a miserable and detention-provoking performance, the girls save Caleb and everyone else who has been captured by the quicksand monster and make sure no one falls victim to it again. The good news is that Phobos really doesn't have the seal. The bad news is the Seal is lying in a storm drain in Meridian, waiting for some poor schmuck to find. As the episode closes, Cedric demands a list of all who left the castle yesterday.

Every student in Sheffield Institute is getting his midterms back and everybody is just about happy with his grades, except Taranee. Cedric's disguise as a bookseller seems to have attracted Cornelia, Elyon, Irma, Taranee, and Hay Lin to the store to look for history books (and to ogle at Cedric). While in the bookstore, the W.I.T.C.H. girls inadvertently touch an inversion point and find themselves in the middle of a Labyrinth inside Phobos’ castle. Will they be able to find their way back without powers and without help from their leader Will who is at home buried in school work?

It's Will's birthday party and if there's one thing she doesn't want, it's a party. The girls manage to throw one anyway and everything is going swimmingly until one of those Meridian fang-faces shows at City Hall looking for birth certificates for a certain teenage girl. Apparently, the current Prince of Meridian has a long lost sister...

Irma, Taranee, Cornelia, and Hay Lin must travel to the other world after Will is captured, but will they be able to free her and Caleb when they can't even transform?