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.
Sword Art Online — Season 4 Episodes (23)
EP 1
E1
EP 2
E2
EP 3
E3
EP 4
E4
EP 5
E5
EP 6
E6
EP 7
E7
EP 8
E8
EP 9
E9
EP 10
E10
EP 11
E11
EP 12
E12
EP 13
E13
EP 14
E14
EP 15
E15
EP 16
E16
EP 17
E17
EP 18
E18
EP 19
E19
EP 20
E20
EP 21
E21
EP 22
E22
EP 23
E23
Other Seasons
Curated by Movi47 Editorial Team