Original
10/13/2019 - 12/29/2019 Finished
Sword Art Online: Alicization - War of Underworld (ソードアート・オンライン アリシゼーション War of Underworld)
Despite the defeat of Quinella—the pontifex of the Axiom Church—things have not seemed to calm down yet. Upon contacting the real world, Kazuto "Kirito" Kirigaya finds out that the Ocean Turtle—a mega-float controlled by Rath—was raided. Due to a sudden short-circuit caused by the raiders, Kirito's fluctlight is damaged, leaving him comatose. Feeling insecure about the people at the Axiom Church, Alice brings the unconscious Kirito back to their hometown—Rulid Village, disregarding her banishment due to an unabsolved crime. Now, Alice is living an ordinary and peaceful life close by the village, wishing for Kirito to wake up. However, tragedy strikes when Alice notices that the Dark Territory has already started to invade the Human Empire. Reassuming her previous alias, Alice Synthesis Thirty, she promises to defeat the Dark Territory in order to defend the world that Kirito and Eugeo worked so hard to protect.
12
Total episodes
12
Canon episodes
0
Filler episodes
0%
% Filler
Canon episodes · 12 Filler episodes · 0
Related works
Related works and sequels
Open a related work to see its own episode count, release dates, and description. The list does not combine separate series into a season count for this title.
Original
Sequel
Sequel
Sequel
SequelWhat to watch, what to skip
Watch order: filler vs canon
Sword Art Online: Alicization - War of Underworld has no filler episodes: all 12 episodes are canon. You can watch it from first to last without checking any list of skippable episodes.
Episode by episode
Complete guide by season
12 Episodes
| # | Episodes | Aired | Type |
|---|---|---|---|
| 1 | In The Far North10/13/2019 | 10/13/2019 | Canon |
| 2 | Raids10/20/2019 | 10/20/2019 | Canon |
| 3 | The Final Load Test10/27/2019 | 10/27/2019 | Canon |
| 4 | Dark Territory11/03/2019 | 11/03/2019 | Canon |
| 5 | The Night Before Battle11/10/2019 | 11/10/2019 | Canon |
| 6 | Battle of the Knights11/17/2019 | 11/17/2019 | Canon |
| 7 | Stigma of the Disqualified11/24/2019 | 11/24/2019 | Canon |
| 8 | Blood and Life12/01/2019 | 12/01/2019 | Canon |
| 9 | Sword and Fist12/08/2019 | 12/08/2019 | Canon |
| 10 | Stacia, the Goddess of Creation12/15/2019 | 12/15/2019 | Canon |
| 11 | Heartless Choice12/22/2019 | 12/22/2019 | Canon |
| 12 | Ray of Light12/29/2019 | 12/29/2019 | Canon |
Verified legal platforms
Where to watch Sword Art Online: Alicization - War of Underworld
All the platforms where you can watch Sword Art Online: Alicization - War of Underworld legally, with direct links to each service.
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Common questions
Frequently asked questions
How many seasons does Sword Art Online: Alicization - War of Underworld have?
Sword Art Online: Alicization - War of Underworld is season 4 of 5 in the franchise: Sword Art Online, Sword Art Online II, Sword Art Online: Alicization, Sword Art Online: Alicization - War of Underworld, and Sword Art Online: Alicization - War of Underworld 2nd Season. All of them have finished airing.
How many episodes does Sword Art Online: Alicization - War of Underworld have?
This page covers 12 episodes. Adding up every season, the franchise has 96 episodes in total.
What is the best order to watch Sword Art Online: Alicization - War of Underworld?
It is recommended to watch Sword Art Online: Alicization - War of Underworld in chronological broadcast order. This means starting from season 1 and continuing sequentially to the last season. Check our watch order guide which includes information about filler vs canon episodes for an optimal experience.
Where can I watch Sword Art Online: Alicization - War of Underworld online?
Sword Art Online: Alicization - War of Underworld is available on various legal streaming platforms. Check the platforms section at the top of this page to see where it's currently available. Options may vary depending on your geographic region.
Is Sword Art Online: Alicization - War of Underworld a complete anime?
Yes, Sword Art Online: Alicization - War of Underworld is a completed anime. All seasons have already aired and you can enjoy the series in its entirety without waiting for new episodes.
Where can I see Sword Art Online: Alicization - War of Underworld's score and reviews on MyAnimeList?
You can check the score, reviews, characters and statistics for Sword Art Online: Alicization - War of Underworld directly on MyAnimeList, the world's largest anime database. There you'll find the community rating, global ranking and opinions from other fans.