Code Geass: Lelouch of the Rebellion: Season 1, Episode 3

1 - 3: Stage 03 - The False Classmate

After confronting Prince Clovis, Lelouch learns information about his mother's murder. Back at school, he is surprised to find that one of the terrorists he worked with is a fellow classmate. But when he confronts her, he finds the limits of his new power.