You will Watch Code Lyoko Episode 17 online for free episodes with HQ / high quality. Stream cartoons Code Lyoko Episode 17 Amnesia When Ms. Hertz gives a lesson on nanotechnology, she has small machine designed to produce the little robots as an example. Little do they realize that Xana has infected it, so when they find it filed with gel, Odd carelessly ends up pushing Ulrich’s face into a small scoop of it. Later on, Ulrich gets a headache and collapses. When he wakes up, his memory is gone. Sissi is there at the time, so she uses Ulrich’s memory loss to convince him that she’s his girlfriend. As the rest of the group tries to bring him to his senses, more cases of amnesia occurs, spreading from person to person like a disease. Only after most of the school is affected does Jeremie realize that Xana-produced nanotechnology is responsible. But Ulrich goes for backup with amnesia until the tower is deactivated.