Episode Overview
In a short film directed by Odd and featuring Sissi, she appears to be under the influence of a ghost. However, her behavior is unusual; she begins to speak in a bizarre language, fixating on Jeremie. Concerned, she is taken to the infirmary. Later, Sissi enters Jeremie's room and scribbles some code on paper. When Jeremie deciphers it, he finds a message expressing her intention to help. Afterward, Sissi is sent to the hospital, prompting Odd and Yumi to go after her. Meanwhile, in Lyoko, Aelita and Ulrich come across a white tower, which angers Xana, who sends Megatanks to destroy it. At the same time, Xana takes control of a hospital nurse to target Sissi. Odd and Yumi manage to stop the nurse, bringing Sissi to the factory to finish her message. She almost completes it before Xana successfully shuts down the white tower. Once it's down, Jeremie translates