Synopsis

Following a three-week respite, the group continues their struggle against X.A.N.A. The villain, in turn, strives to obliterate Lyoko, seeking to thwart their every effort. He focuses his attacks on the core, the repository of code that sustains the virtual world. In a separate development, Odd leverages a bit of leverage to persuade Jim to request Principal Delmas arrange for him to take the same classes as his friends. Meanwhile, Yumi decides against pursuing a romantic relationship with Ulric