Code Geass: Lelouch of the Rebellion (2006)

S1E25 Zero

Having successfully captured Cornelia, Lelouch pressures her for details about Marianne's murder, but her revelations leave him deeply dissatisfied. Meanwhile, V.V. transports Nunnally to Kaminejima, prompting Lelouch to forsake the Black Knights in a desperate bid to save his sister. In his absence, the Black Knights struggle against the advancing Britannian Army. Suzaku, determined to stop Lelouch, tracks him down, setting the stage for a dramatic showdown between the once-close friends.