Yumi wins a brutal battle with the Scyphozoa, but in the process, it takes away her human DNA and she can no longer return home. After numerous rescue attempts by our heroes fail, the only solution seems to be entering the dreaded Sector 5.
Watch Now:AmazoniTunesOdd's dog Kiwi is banished to the factory after another incident at the dorm. Meanwhile, XANA takes control of Jeremy's robot dog, Kiwi2 and turns it into an attack dog, so Aelita travels into Lyoko to deactivate the tower controlling it.
Watch Now:AmazonJeremy and Aelita create a virtual ship capable of taking our heroes deep into the virtual world. But working late at night is against school rules and they receive detention, so XANA sets out to destroy the ship during their punishment.
Watch Now:AmazoniTunesWhen the supercomputer's uranium power source begins to fail, Xana is forced to possess a local criminal named Peter Duncan to replace it. The supercomputer's periodic shutdowns threaten not only Xana, but also Aelita, whose heart stops beating with each shutdown.
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