Synopsis

On a class trip with her tenth-grade classmates, Yumi confronts a terrifying reality: Xana has taken hold of everyone around her – students, teachers, even the bus driver. Simultaneously, Xana is enacting a new plan to eradicate Lyoko, determined to dismantle each sector individually. To this end, he uses the Scyphozoa to possess Aelita and infiltrate the way tower, unleashing Code:XANA and obliterating Jeremie’s Forest Sector.