What is the Code Lyoko story?

Answer 1

While exploring an old factory near their school, four students, Yumi, Jeremy, Odd and Ulrich, come across a large Supercomputer. Jeremy investigates the controls of the giant computer and discovers that he can transport the group to another world called Lyoko which is controlled by the Supercomputer!

Once in Lyoko, they meet a virtual humanoid girl called Aelita who tells the story of X.A.N.A., a sentient virus that has infected the Supercomputer and threatens to destroy Lyoko and ultimately control the Earth. It unleashes monsters and launches attacks on Earth. Both worlds are in great danger. Thanks to Jeremy, they succeed in materializing Aelita on Earth, seemingly releasing her from X.A.N.A.'s clutches. But the the supervirus does not give up easily: our heroes cannot leave the world of Lyoko to the mercy of X.A.N.A. which has become increasingly stronger and begins creating new monsters. Fortunately Jeremy programs vehicles in the Supercomputer for his friends to gain power and speed in the virtual world. Upon finding the journal of Franz Hopper, the creator of Lyoko, the heroes find their ultimate objective: Decipher the antivirus within its pages and use it to destroy the virus. Will our heroes put an end to the threat of X.A.N.A.? One thing is certain: they are ready to risk everything to win.