After the Ark Fleet was destroyed, a considerable portion of the enemy force was wiped out due to the crash landing. The remaining soldiers of the Knights of St. Michael are reassembling to launch a final assault on Castle Weisswolf. Meanwhile, the W-0, alongside their new ally Ashley Ashra, are ready to intercept them. At the same time, Shin's uncontainable Geass drives him to completely eradicate his younger brother's existence. Despite Leila's objections, Akito refuses to surrender to his presumed destiny and decides to confront Shin in a final confrontation.