Code 871 Sword Art Online : Season 4 Episode 16
TV-14 Tochigi TV 24m int(0)
Aired: August 2nd, 2020 @ 12:00 AM EST on Tochigi TV
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.