In this prequel set one year after the fourth World War, cyborg and hacker extraordinaire Motoko Kusanagi from the military's 501st Secret Unit finds herself wrapped up in the investigation of a devastating bombing.

Witness the formation of the legendary Public Security Section 9. When a clandestine organization hacks every car in the city, Kusanagi recruits a lethal team of cyber operatives to clamp down on the chaos and make the city safe again.

Nicknamed "Sadako" for her spooky appearance, high schooler Sawako begins to break out of her shell when she befriends popular boy Kazehaya.