The Empire of
Britannia has invaded Japan using giant robot weapons called
Knightmare Frames. Japan is now referred to as Area 11, and its
people the 11's. A Britannian who was living in Japan at the time,
Lelouch, vowed to his Japanese friend Suzaku that he'd destroy
Britannia. Years later, Lelouch is in high school, but regularly
skips out of school to go play chess and gamble on himself. One
day, he stumbles on terrorists 11's who've stolen a military secret
and is caught by a member of the Britannian task force sent after
them, who is Suzaku. As the rest of the squad arrives, Suzaku is
shot for disobeying orders, while the military secret, a young
girl, gives Lelouch the power of Geass, which makes anyone obey any
order. While Suzaku is secretly made the pilot of Britannia's brand
new prototype Knightmare, Lancelot, Lelouch becomes the masked Zero
to lead the rebellion to destroy Britannia once and for
all.