S04E0123:261. In the Far NorthSix months have passed since the fierce battle against Administrator. Alice has brought Kirito to her childhood home, Rulid Village, where they live peacefully. Gazing…
Sword Art Online Season 4 – Watch online
23 episodes · since October 13, 2019
Time has passed since Kirito defeated the pontifex. While Bercoulli seeks to rebuild and bolster the defenses of the human lands in anticipation of an assault by the forces of darkness, Alice fears for the catatonic Kirito's safety and so relocates to a cabin near Rulid. She may not be accepted in…
S04E0123:261. In the Far NorthSix months have passed since the fierce battle against Administrator. Alice has brought Kirito to her childhood home, Rulid Village, where they live peacefully. Gazing…
S04E0223:322. RaidsA force from the Dark Territory is attacking Rulid Village. Though she’d lost her purpose in battle, in order to fight for her family, and for the people that Kirito and…
S04E0323:583. The Final Load TestThe mysterious group that attacked the Ocean Turtle turns out to be a secret unit under orders from the U.S. National Security Agency. And its leader, Gabriel, has…
S04E0423:334. Dark TerritoryShasta, commander of the Dark Territory's dark knights, had intended to use Administrator's death as a chance for peace with the Human Empire. But his plans are thwarted…
S04E0523:435. The Night Before BattleResolved to fight for humankind, Alice joins the forces of the Human Empire, bringing Kirito with her. But while the forces of darkness boast overwhelming numbers, only…
S04E0623:176. Battle of the KnightsThe Final Load Test has begun, and the Eastern Gate has collapsed. Incited by Gabriel, now Emperor Vecta, the massive army of the land of darkness pushes on towards the…
S04E0723:557. Stigma of the DisqualifiedIntegrity Knight Renly Synthesis Twenty-Seven, in battle for the first time, flees his position, allowing goblins from the forces of darkness to infiltrate to the tent…
S04E0823:388. Blood and LifeThe powerful formal art unleashed by the Integrity Knight Alice inflicts severe casualties on the forces of darkness. Alice encounters an enemy survivor and learns that…
S04E0923:049. Sword and FistUpon seeing Alice, Gabriel orders his entire army to capture her. The pugilists guild races ahead of the main force. As Alice and Bercouli try to come up with a strategy…
S04E1023:1910. Stacia, the Goddess of CreationAsuna has logged into the Underworld using the superuser account of Stacia, the Goddess of Creation. After she descends, she is reunited with Kirito, thanks to Ronie and…
S04E1123:3711. Heartless ChoiceAsuna has created a bottomless chasm. The dark knights and the pugilists attempt to cross over to the other side, where the Human Empire Army waits. Meanwhile, Critter…
S04E1223:3912. Ray of LightDue to Gabriel's scheme, U.S. players were given black knight accounts, and are now continuously logging in to the Underworld. They begin mercilessly slaughtering…
S04E1323:5713. The War of UnderworldSinon has logged in with the super-account of Solus, the Sun Goddess and rescues Asuna and the others at the last minute. Meanwhile, Leafa logs in with the super-account…
S04E1423:5814. End to EternityDespite its modest size, the Human Empire Army and Asuna valiantly battle the wave of American players surging towards them. But they’re hopelessly outnumbered, and the…
S04E1523:4415. InstigationBercouli pursues Vecta, who’s abducted Alice. After a long, vicious battle, Bercouli unleashes his secret sword skill, Uragiri, and finally defeats Vecta, despite having…
S04E1623:0616. Code 871The traitor inside Rath turns out to be a researcher named Yanai. When Higa attempts to restore Kirito, Yanai tries to thwart the operation by holding him at gunpoint…
S04E1723:0017. Prince of HellAsuna and the others succumb to Vassago and the Chinese/Korean players. Discovering the catatonic Kirito, Vassago kicks his wheelchair over. Enraged, Klein lunges at…
S04E1823:0518. MemoriesSinon manages to severely damage Gabriel, but her strength has been sapped. Leafa collapses after wiping out the American players. And Asuna, her situation now hopeless…
S04E1923:3519. AwakeningEscaping his nightmares, Kirito regains consciousness at last. With the Night-Sky Blade in his right hand and the broken Blue Rose Sword in his left, he faces off…
S04E2023:4020. The Night-Sky BladeAlice and Asuna head to the World’s End Altar as Kirito confronts Gabriel. Unless he can defeat Gabriel and return to the real world before the maximum-acceleration…
S04E2123:0621. Beyond TimeThe maximum-acceleration phase has begun. Alice successfully logs out of the Underworld, but Kirito doesn’t make it in time. In the real world, Higa and Kikuoka rush to…
S04E2223:3622. AliceThe “Rath Attack Incident,” masterminded by the American National Security Agency, is over. Now head of the newly formed Oceanic Resource Exploration & Research…
S04E2323:3423. New WorldRinko informs Kazuto that Alice is missing. He’s about to rush to the Rath Roppongi branch when the doorbell rings. In a panic, Kazuto throws open the door, only to find…Where to stream Sword Art Online Season 4
Subscription
Availability provided by JustWatch via TMDB, details on TMDB. Offers in the United States, subject to change.
About season 4
Season 4 of Sword Art Online has 23 episodes, aired from October 13, 2019 to September 20, 2020 on Gunma TV, TOKYO MX, tvk, BS11 and Tochigi TV. Episodes run 23 minutes on average. The highest rated episode is “Awakening” (S04E19, 8.9/10).
Frequently asked questions about Sword Art Online Season 4
How many episodes are in Sword Art Online Season 4?
Sword Art Online Season 4 has 23 episodes.
When did Sword Art Online Season 4 air?
The first episode aired on October 13, 2019 and the last one on September 20, 2020.
Where to watch Sword Art Online Season 4 online?
In the United States, Sword Art Online is available with a subscription on Hulu, Crunchyroll and Crunchyroll Amazon Channel, to buy on Apple TV Store and Google Play Movies (source: JustWatch via TMDB, offers subject to change). Availability of each season depends on the platform.