Episode Title:
Final Round.
Episode Description:
After William is initiated into the group, a series of events leaves only him and Aelita to defend Lyoko's core. During William's first mission to Lyoko, X.A.N.A. uses the Scyphozoa to possess him, making him the general of a massive army focused on Lyoko's core. Despite their best efforts, the group canot stop the possessed William from destroying the core, which both renders the Supercomputer useless and transforms William into a darker, X.A.N.A.-themed version of himself. Later, in the Hermitage, while the group broods over their predicament, Jeremy receives a coded message directly from the internet, sent by none other than Franz Hopper who somehow survived the destruction of Lyoko.
