W2TCH

Sword Art Online (2012 – 2020)

2012 • 4 seasons • TV-MA
On September 23, 2026
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All seasons

Sword Art Online — Sword Art Online: Alicization - War of Underworld

23 episodes · Oct 13, 2019

The fall of Quinella, once thought to bring peace, hasn't ushered in a quiet era. When Kirito connects with the real world, he discovers the Ocean Turtle—a massive floating hub controlled by Rath—has been violently attacked. A sudden surge during the raid critically damages his fluctlight, plunging him into a deep coma. Worried about the stability of the Axiom Church, Alice makes a daring choice, defying her banishment and bringing Kirito back to her quiet hometown of Rulid Village. She settles into an unassuming life nearby, desperately hoping for his recovery. But their fragile peace is shattered when Alice realizes the Dark Territory has begun its advance on the Human Empire. Reclaiming her former identity as Alice Synthesis Thirty, she vows to confront this new threat and safeguard the world that Kirito and Eugeo fought so tirelessly to build.

1. In the Far North
Oct 13, 2019 · 24m · 8.8

Six months have drifted by since the desperate conflict with Administrator. Alice has welcomed Kirito to her childhood home, the tranquil village of Rulid, and together they now reside in peaceful contentment. Looking out at the world she h…

2. Raids
Oct 20, 2019 · 24m · 8.6

A tide of darkness descends upon Rulid Village. Though she had long since relinquished her sense of purpose on the battlefield, a fierce resolve ignites within Alice. Driven by loyalty to her family and a commitment to those Kirito and Euge…

3. The Final Load Test
Oct 27, 2019 · 24m · 8.1

The enigmatic organization responsible for the assault on the Ocean Turtle is revealed to be a clandestine division operating under the direction of the U.S. National Security Agency. Furthermore, its leader, Gabriel, has a prior history wi…

4. Dark Territory
Nov 3, 2019 · 24m · 8.1

Shasta, leader of the Dark Territory’s dark knights, had hoped to leverage Administrator’s demise into an opportunity for peace with the Human Empire. However, his designs are disrupted by Emperor Vecta’s return to the shadowed lands.

5. The Night Before Battle
Nov 10, 2019 · 24m · 8.3

Determined to champion humanity, Alice aligns herself with the Human Empire, taking Kirito with her. Yet, despite the darkness's vast ranks, the Empire can only muster a meager thirteen Integrity Knights to stand against them.

6. Battle of the Knights
Nov 17, 2019 · 24m · 8.6

The final load test is underway, and the Eastern Gate has fallen. Driven forward by Gabriel, now Emperor Vecta, the vast host from the land of darkness advances relentlessly upon the Human Empire.

7. Stigma of the Disqualified
Nov 24, 2019 · 24m · 8.5

In his first experience of combat, Integrity Knight Renly Synthesis Twenty-Seven falters, abandoning his post and inadvertently creating an opening. This allows goblins, aligned with the forces of darkness, to slip past defenses and reach t…

8. Blood and Life
Dec 1, 2019 · 24m · 8.6

The formidable artistry of the Integrity Knight Alice brings devastating losses to the forces of darkness. During the encounter, Alice confronts a surviving foe and discovers that Emperor Vecta’s goal is to locate the “Priestess of Light.”

9. Sword and Fist
Dec 8, 2019 · 24m · 8.9

The sight of Alice spurred Gabriel into immediate action; he commanded his entire army to seize her. Ahead of the main force, the pugilists' guild moved with swift purpose. While Alice and Bercouli sought a way to anticipate their attack, t…

10. Stacia, the Goddess of Creation
Dec 15, 2019 · 24m · 8.9

Accessing the Underworld, Asuna utilized the master account of Stacia, the Goddess of Creation. Upon her descent, she was quickly found by Kirito, thanks to the assistance of Ronie and Tiese. However, their reunion proved fleeting, as Alice…

11. Heartless Choice
Dec 22, 2019 · 24m · 8.5

Asuna had carved out a chasm of infinite depth. Dark knights and pugilists alike now sought passage across it, hoping to reach the Human Empire Army that awaited on the far side. Simultaneously, Critter released an announcement detailing a …

12. Ray of Light
Dec 29, 2019 · 24m · 8.7

Gabriel’s plan had provided American players with accounts bearing the insignia of black knights, and they now find themselves in a perpetual state of entry into the Underworld. There, they engage in a relentless and merciless campaign, att…

13. The War of Underworld
Jul 12, 2020 · 24m · 8.5

Under the watchful gaze of Sol, the Sun Goddess, Sinon accessed her master account, arriving just in time to rescue Asuna and the others. Simultaneously, Leafa invoked the power of Terraria, the Earth Goddess, and descended into the Underwo…

14. End to Eternity
Jul 19, 2020 · 24m · 8.6

Though small in number, the Human Empire Army and Asuna fought with valor against the tide of American players advancing upon them. Yet, they were hopelessly outnumbered, and the soldiers of the Human Empire began to fall, one after another…

15. Instigation
Jul 26, 2020 · 24m · 7.3

Driven by a desperate urgency, Bercouli hunts Vecta, the man who has taken Alice. Their confrontation erupts into a protracted and brutal fight. Finally, summoning a hidden power – the sword skill Uragiri – Bercouli prevails over Vecta, tho…

16. Code 871
Aug 2, 2020 · 24m · 7.9

The betrayal within Rath is revealed to be the work of a researcher named Yanai. As Higa endeavors to revive Kirito, Yanai attempts to disrupt the process, aiming a gun at him. Simultaneously, in the Underworld, Sinon faces Gabriel, who has…

17. Prince of Hell
Aug 9, 2020 · 24m · 8.1

Vassago and the players from China and Korea gained the upper hand, and Asuna and her companions fell back. Finding Kirito in a catatonic state, Vassago deliberately overturned his wheelchair. Klein, consumed by fury, charged at Vassago onl…

18. Memories
Aug 16, 2020 · 24m · 8.7

Sinon inflicted a grievous wound upon Gabriel, yet the effort had taken its toll. Leafa collapsed after vanquishing the American players. Asuna, her prospects dim, looked at Kirito. Meanwhile, the Black Swordsman continued his aimless journ…

19. Awakening
Aug 23, 2020 · 24m · 9.2

Kirito stirred, finally emerging from the grip of his nightmares. The Night-Sky Blade was firm in his right hand, while the shattered Blue Rose Sword rested in his left. Before him stood Vassago, the Mate-Chopper looming large and menacing.

20. The Night-Sky Blade
Aug 30, 2020 · 24m · 8.8

Alice and Asuna journeyed toward the World's End Altar as Kirito engaged Gabriel in battle. Should he fail to overcome Gabriel and return to the real world before the acceleration phase reached its peak, Kirito would be bound to the Underwo…

21. Beyond Time
Sep 6, 2020 · 24m · 8.0

The period of maximum acceleration had commenced. Alice logged out of the Underworld without issue, but Kirito arrived too late. Back in the real world, Higa and Kikuoka hurried to shut down the STL, striving to halt the accelerated process…

22. Alice
Sep 13, 2020 · 24m · 8.5

The events surrounding the "Rath Attack Incident," orchestrated by the American National Security Agency, have concluded. Rinko, newly appointed head of the Oceanic Resource Exploration & Research Institution, presents Alice to the world as…

23. New World
Sep 20, 2020 · 24m · 8.8

"Alice is gone," Rinko said to Kazuto. He was already poised to race to the Rath Roppongi branch when the doorbell chimed. Startled, Kazuto flung the door open to find a deliveryman standing there, bearing a large cardboard box.