Recap of Sword Art Online: Alicization - War of Underworld.

The final battle against the Dark Territory drags on, as players from all over the world flood the Underworld's servers and plunge the Human Empire into utter chaos. Asuna Yuuki and her friends defend their new allies with everything they have, but their numbers are falling. Meanwhile, Alice Zuberg heads toward the World's End Altar while Gabriel "Vecta" Miller relentlessly pursues her. Meanwhile, members of Rath strategize a plan in an attempt to restore Kirito's damaged fluctlight. However, the intruders occupying the main control room have other plans. Surrounded by death and despair, when all hope seems to be lost, one voice reaches out to Kirito—a familiar one saying, "I will always be by your side." Sword Art Online: Alicization - War of Underworld 2nd Season is the epic conclusion to Akihiko Kayaba's dream of creating artificial human intelligence. Now it is up to Kirito and his friends to protect this collapsing world from the people that still think it is just a game. [Written by MAL Rewrite]

The year is 2755. As a result of a system malfunction, the cargo ship XeBeC goes off-course in a warp gate and ends up within the orbit of the distant planet Garaga. After crashing on Garaga's surface, the crew must find ways to survive from hideous monsters, rabid ape soldiers, and a race of mysterious psychics.

It is the year 2100, and on the colonized Moon, a project is under way to explore new aspects of energy. Amami Kurau is the daughter of the chief scientist on the project, and on her 12th birthday, she accompanies her father to the lab to observe the experiments. Then something goes awry, and Kurau is struck by twin bolts of light. In the aftermath, her father is dismayed to find that his daughter is no longer his daughter. Rather, her body is now home to two energy entities with fantastic powers.