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Sword Art Online

A video game whiz helps create a new technology that enables players to guide their online avatars with their own bodies -- but a dark twist emerges.
Starring:Yoshitsugu Matsuoka, Haruka Tomatsu, Ayana Taketatsu
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Episodes

Sword Art Online

Sword Art Online Alicization War of Underworld
  1. Watch In the Far North. Episode 1 of Season 4.

    Despite an arduous few months, Alice has carved out a peaceful existence with Kirito in the countryside. A guest threatens to disrupt their new life.

  2. Watch Raids. Episode 2 of Season 4.

    Goblins and orcs mount a powerful attack that threatens Rulid's survival. Alice flies over to save them but is soon forced into a painful choice.

  3. Watch The Final Load Test. Episode 3 of Season 4.

    The ship's rock-solid cyber-defenses stop its invaders until their leader Gabriel turns his attention to the Underworld, and a girl named Alice.

  4. Watch Dark Territory. Episode 4 of Season 4.

    Now in control of the Dark Territory army, Gabriel prepares for war with the Human Empire. Meanwhile, the real Vecta faces danger from all sides.

  5. Watch The Night Before Battle. Episode 5 of Season 4.

    Alice and Kirito rendezvous with the army, but he's still in bad shape and the eastern gate won't hold long in the face of their foe's huge numbers.

  6. Watch Battle of the Knights. Episode 6 of Season 4.

    The gate falls and the enormous Dark Territory army uses all means possible to invade human lands, slowly overcoming their better-organized opponents.

  7. Watch Stigma of the Disqualified. Episode 7 of Season 4.

    Renly runs away from the battle and finds Ronie and Tiese, along with a chance to redeem himself. Meanwhile, Alice continues work on the laser bomb.

  8. Watch Blood and Life. Episode 8 of Season 4.

    After the laser bomb wreaks havoc on the enemy, Alice finds a high-ranking survivor. The human army creates a diversion to draw Vecta's attention.

  9. Watch Sword and Fist. Episode 9 of Season 4.

    Vecta orders his forces to pursue Alice, leading to a battle between a fighter able to cut through anything and another with an impenetrable body.

  10. Watch Stacia, the Goddess of Creation. Episode 10 of Season 4.

    As the ultra-powerful Stacia, Asuna stabilizes the situation and reunites with Kirito. But after Alice catches them together, things get a bit dicey.

  11. Watch Heartless Choice. Episode 11 of Season 4.

    The decoy force discovers that Vecta is sending his army across the ravine. Meanwhile, Critter uses deception to amass American recruits.

  12. Watch Ray of Light. Episode 12 of Season 4.

    Asuna is desperate to stop bands of American players amidst mass carnage and chaos on both sides. Vecta prepares to capture his target.

  13. Watch The War of Underworld. Episode 13 of Season 4.

    Sinon logs into the Solus super-account and reunites with Asuna and Kirito. Later, Leafa meets orc leader Lilpilin and agrees to become a prisoner.

  14. Watch End to Eternity. Episode 14 of Season 4.

    As more and more of Asuna's friends arrive, she prepares to push the foreign players back. Meanwhile, Higa gets an idea to help Kirito but needs help.

  15. Watch Instigation. Episode 15 of Season 4.

    Sinon arrives and tells a distraught Alice that she must continue south to the World's End Altar. Meanwhile, Asuna spots a shadowy figure up above.

  16. Watch Code 871. Episode 16 of Season 4.

    With Higa as his captive audience, Yanai gets several things off his chest. Meanwhile, Sinon has trouble dealing with Subtilizer in the Underworld.

  17. Watch Prince of Hell. Episode 17 of Season 4.

    Faced with certain death at the hands of Vassago, a defenseless Kirito is spared by a last-minute intervention from an unexpected duo.

  18. Watch Memories. Episode 18 of Season 4.

    While Kirito confronts his painful memories of the past, Asuna crosses swords with Vassago, who explains his obsession with the Black Swordsman.

  19. Watch Awakening. Episode 19 of Season 4.

    Wielding the Night-Sky Blade and the broken Blue Rose Sword, Kirito struggles against Vassago's cleaver blows. But he soon receives a helping hand.

  20. Watch The Night-Sky Blade. Episode 20 of Season 4.

    Asuna and Alice hurry to reach the World's End Altar before it closes. Kirito stays behind to battle Gabriel and secure the girls’ safe passage.

  21. Watch Beyond Time. Episode 21 of Season 4.

    Entrusting Alice to Rinko, Asuna remains in the Underworld. Meanwhile, Higa and Kikuoka must work quickly to shut down the maximum-acceleration phase.

  22. Watch Alice. Episode 22 of Season 4.

    Rinko holds a press conference to unveil the first true artificial general intelligence. Alice deftly answers all of the reporters' tough questions.

  23. Watch New World. Episode 23 of Season 4.

    Hearing that Alice has gone missing, Kazuto rushes to leave his house but is stopped by an unexpected delivery: a large box with surprising contents.

More Details

Watch offline
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Genres
Action Anime, Japanese, Anime based on Light Novels, Anime Series, Sci-Fi Anime
This show is...
Imaginative, Exciting
Cast
Yoshitsugu MatsuokaHaruka TomatsuAyana TaketatsuKanae ItoRina HidakaAyahi TakagakiHiroaki HirataHiroki YasumotoSaori HayamiKoichi YamaderaMiyuki SawashiroAi KayanoNobunaga Shimazaki

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