Sword Art Online - Season 4

Season 4
Alicization - War of Underworld
* Based on Kawahara Reki's light novel series Sword Art Online.
Kirito, Eugeo, and Alice. Six months have passed since the two disciples and an Integrity Knight brought down the pontifex, Administrator. With the fighting over, Alice has been living in her hometown of Rulid Village. Beside her is Kirito, who has not only lost his arm and soul, but also his dear friend. As Alice devotes herself to looking after Kirito, she too has lost the will to fight she once had as a knight.
Nevertheless, the time for the final stress test – one which will engulf the entire Underworld with tragedy – draws relentlessly closer.
Meanwhile, in the deepest areas of the Dark Territory, the Dark God Vecta has resurrected, as if to have waited for this very moment. Leading an army of dark forces, they begin their invasion into the human empire in hopes of attaining the Priestess of Light. The human empire force led by the Integrity Knight Bercouli prepares for a war of an unimaginable scale against the army of the Dark Territory. Even then, Alice is nowhere to be seen, nor the two heroes that saved the realm...
Source: Official website

Episodes

In the Far North
Six months have passed since the fierce battle against Administrator. Alice has brought Kirito to her childhood home, Rulid Village, where they live peacefully. Gazing out at the world that she saved with Kirito, Alice reflects on all that's happened.

Raids
A 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 Eugeo tried to protect, Alice takes up the Osmanthus Blade once again.

The Final Load Test
The 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 battled Kirito and Sinon before.

Dark Territory
Shasta, 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 by Emperor Vecta's return to the land of darkness.

The Night Before Battle
Resolved 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 thirteen Integrity Knights are available to fight for the Human Empire.

Battle of the Knights
The 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 Human Empire.

Stigma of the Disqualified
Integrity 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 where Kirito is.

Blood and Life
The 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 Emperor Vecta's objective is to find the "Priestess of Light."

Sword and Fist
Upon 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 to counter them.

Stacia, the Goddess of Creation
Asuna 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 Tiese. But soon Alice arrives, leading to a precarious situation.

Heartless Choice
Asuna 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.

Ray of Light
Due 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 soldiers from both the Human Empire Army and the Dark Territory Army.

The War of Underworld
The ice sniper from Gun Gale Online, Sinon, successfully logon into Underworld using a super account Solus, the goddess of the sun, to help Asuna and Kirito inside the Underworld against tons of Crimson Army and The Dark Knight.

End to Eternity
Despite 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 Human Empire soldiers start to fall one after another.

Instigation
Bercouli pursues Vecta, who's abducted Alice. After a long, vicious battle, Bercouli unleashes his secret sword skill, Uragiri, and finally defeats Vecta, despite having sustained severe injuries himself.

Code 871
The 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. Meanwhile, in the Underworld, Sinon confronts Gabriel, who has logged back in.

Prince of Hell
Asuna and the others succumb to Vassago and the Chinese/Korean players. Discovering the catatonic Kirito, Vassago kicks his wheelchair over. Enraged, Klein lunges at Vassago, only to be pinned down by enemy players. Just then, someone unexpected appears.

Memories
Sinon 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, gazes at Kirito. But the Black Swordsman continues to wander through his dreams.

Awakening
Escaping 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 against Vassago, armed with the Mate-Chopper, now enormous in size.

The Night-Sky Blade
Alice 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 phase begins, Kirito will have to spend the next 200 years in the Underworld.

Beyond Time
The 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 shut down the STL, in order to disable the maximum-acceleration phase, but…

Alice
The "Rath Attack Incident," masterminded by the American National Security Agency, is over. Now head of the newly formed Oceanic Resource Exploration & Research Institution, Rinko unveils Alice to the world as an authentic artificial general intelligence.

New World
Rinko 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 a deliveryman there with a huge cardboard box.
Videos
Recently Updated Shows

Running Point
When a scandal forces her brother to resign, Isla Gordon is appointed President of the Los Angeles Waves, one of the most storied professional basketball franchises, and her family business. Ambitious and often overlooked, Isla will have to prove to her skeptical brothers, the board, and the larger sports community that she was the right choice for the job, especially in the unpredictable, male-dominated world of sports.

Poppa's House
Poppa's House revolves around a legendary talk radio host and happily divorced "Poppa" who has his point of view challenged at work when a new female co-host is hired, and at home where he finds himself still parenting his adult son, a brilliant dreamer who is trying to pursue his passion while being a responsible father and husband.

Anne Rice's Mayfair Witches
Anne Rice's Mayfair Witches centers on an intuitive young neurosurgeon who discovers that she is the unlikely heir to a family of witches. As she grapples with her newfound powers, she must contend with a sinister presence that has haunted her family for generations.