The Enfield Haunting (2015)

S3E1 Straight To Heart

Title: Straight to Heart Plot: Following a lengthy three-week break, the team continues their quest to counter X.A.N.A.'s threats. Meanwhile, X.A.N.A. is intent on annihilating Lyoko by targeting its core, which holds the essential code for the virtual realm. In a subplot, Odd coerces Jim into persuading Principal Delmas to schedule him in classes alongside his friends. Meanwhile, Yumi chooses to remain just friends with Ulrich rather than pursuing a romantic relationship. As the group fights to protect the core, Aelita is unexpectedly devirtualized. However, she finds herself back in the scanners, leading Jeremy to realize that Aelita, being fully human, no longer needs Code: Earth for her materialization.