Underworld is fully consumed by the war between the Human Empire and the Dark Territory. Gabriel, leading the Dark Territory army, is determined to capture Alice, the Priestess of Light, while Asuna and the Human Empire forces fight to protect Underworld. With Kirito still unconscious, Gabriel has recruited American players to help in his mission. Asuna, Sinon, and Leafa use their super-accounts to join the fight. Lisbeth's passionate speech convinces ALO players to join the cause, as the fate of Underworld, AI, and mankind rests on the outcome. All eyes remain on Kirito, the Black Swordsman, who holds the key to this world's future.