Lelouch Lamperouge, a Britannian student, accidentally gets involved with a group of terrorists. He meets a mysterious woman who gives him the powers of Geass, the "Power of Kings".
While Lelouch comes to realize his new power, using it and his superior strategic abilities to help the terrorists in their attack. The White Knight arrives, and ruins his plans.
Lelouch is reunited with C2, the strange girl who granted him the power of Geass. Since Zero confessed to Clovis' murder, Suzaku is acquitted of all charges. He meets Princess Euphemia, who has him guide her around Area 11.
Suzaku is enrolled in Ashford Academy, but is shunned because of his association in the murder of the previous Viceroy. Although he and Lelouch are old friends, they decide to keep it a secret for Lelouch's sake.
Zero's Black Knights are becoming a rallying point for Japanese, and they receive "gifts" from the main underground Japanese forces. Zero once again inserts his forces into battle, with the intention of capturing Cornelia.
Zero manages to destroy most of Cornelia's units and the superior technology of Kallen's Knighmare is enough to take on the White Knight, who saves Cornelia. Lelouch is pursued by the White Knight.