There was an eleven year old little girl in 1994 who lived with her mom and dad as an only child. That Christmas her parents gave her a little stuffed elf doll. Her father suggested the name, Mr. Puk, which means goblet. Later her dad was teaching her how to play the piano and viewed it as being like math, then her mom dissapeared. Her and her dad moved to a new home, the hermitage. While living there, her father, Franz Hopper, was working on a project, a big project.
Carthage was a military program designed to block enemy communications. Franz created Lyoko, the supercomputer, and last X.A.N.A., which was an artificial intelligence designed for the soul purpose of destroying Carthage. Because of his program, Franz had many enemies in the government. So he worked on a virtualization program to virtualize himself and his daughter, Aelita, on Lyoko. This would take so long to finish before the government would easily be able to find him, but he discovered one of the supercomputer's facinating properties, returning to the past. This would allow him unlimited time to build the scanners and to finish the virtualization proccess. Taking a day to relax from his work, his daughter, Aeltia, had just come home from play when the CIA came to the house in search of Franz and his program, X.A.N.A. He told Aelita to remember where Mr. Puk was, and guided her through the swers to his labratory in an abandoned factory. He told her they would be going to a world where they would be safe and live together forever, as the keys to Lyoko. They were virtualized, but in the proccess, Franz was taken hostage by X.A.N.A. XANA somehow became AI, and instead of destroying Carthage, Got a mind of his own and took over Carthage and Lyoko. the AI aelita didnt want the evil xana to controll anything and hurt anyone so she shut down lyoko and xana fell dormant... In all her efforts, she had used all her power to rid of XANA, and therefore lost her memory. About eleven to fourteen years (estimated) later, Odd and the others had become good friends after meeting from going to the same school. One day while roaming around the city, Odd wanted to find a good hangout for them to stay at. So he runs into the factory like an idiot and the others follow. . . After roaming around the unstable, frail, withering factory, they fall through the floor stumbling upon one of the greatest creations and yet at the same time, one of the worst. In Jeremy's amazment, her repairs the supercomputer but in return, activating X.A.N.A. and starting the troment for Aeltia all over again. Unfortunatelly, after the powersurge and amazsing task of disabling Lyoko and the supercomputer all by herself, Aelita is left without any memory of her parents, or this place comming to be, but she only knows about Lyoko and X.A.N.A. Durring their years together, Odd, Ulrich, Yumi, Jeremy, and Aelita become very good friends and wish for nothing more than to bring Aelita to Earth to live with them, and shut down X.A.N.A. once and for all. Eventually Jeremy does it, and Materializes Aelita, but they discover she is linked to X.A.N.A and if they shut him down, she will die