Эпизод 9

During class, everyone's cell phones suddenly go off, and all of them are confiscated. Sissi is not happy about this and organizes a protest in response. Yumi joins the protest, since having cell phones is a necessary part of the group's fight against X.A.N. A. Meanwhile, Jeremie investigates the strange occurrence and learns that X. A. N. A. is using the school's antenna to take over the nearby television antenna. From there, he could take over a laser-equipped, military satellite. While Odd and Ulrich head to Lyoko to prevent X. A. N. A. from doing so, Yumi stays behind to support Sissi's protest. As they head for the tower, X. A. N. A. succeeds in taking over a military satellite and turns it on the school. Odd, who gets devirtualized, has to keep Yumi safe while Aelita and Ulrich look for a tower that seems to be invisible.