Stream the full Sword Art Online Season 4 Episode 21 movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.
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…