Code Lyoko

In a prequel to the series, Jeremie discovers a supercomputer in an abandoned factory. Within, he finds an artificial intelligence he decides to name Maya. With the supercomputer active, strange events begin to plague Jeremie. Meanwhile, the rest of the group begins to meet one another. Ulrich and Yumi end up in the same martial arts class and Ulrich gets mad when he gets beaten by Yumi. Odd is new in school and brings along his dog Kiwi. Odd gets roomed with Ulrich and Kiwi tears up Ulrich's things. Ulrich and Odd go into the virtual world for the first time.