After being given a mysterious power to control others, an outcast prince becomes the masked leader of the rebellion against an all-powerful empire.

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 immortal witch, 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.—Anonymous

A continuation of "Code Geass: Lelouch of the Rebellion". One year after the events of the season 1 finale, Lelouch returns to Ashford Academy, having no memory of his time as Zero, his Geass power, or his sister Nunnally. The Black Knights were defeated in the Battle of Tokyo, and all but a few of them have been captured or killed. The remaining Black Knights, along with C.C., find Lelouch and help him regain his memory. Afterwards, Lelouch resumes the role of Zero while attempting to hide the fact that his memories have returned.—Princess Tarah

After Holy Empire of Britannia attacks and conquers Japan and reduces the once proud nation as an occupied country, Lelouch, an exiled Imperial Prince of Britannia empire, vows to wrestle Japan to its freedom. He encounters a mysterious girl named C.C., who bestows upon him the mystical power of Geass. Will this new power help Lelouch to realise his dream to defeat the Empire or will he succumb to the corrupting force of the Geass?—Bhanu Kumar Labh

In the future, the Saint Britannian Empire invades Japan and call their inhabitants the "eleven." A child living in the Empire witnesses the death of his mother and the crippling of his little sister. Later he gets caught in an eleven rebel chase and has the opportunity given by a mysterious girl to take his revenge against the Empire by using an obedience power.—Pel Par