When the riot squad starts shooting citizens during the holiday season, the Major and her team must track down a terrorist hacker who operates under the name Fire-Starter.

Motoko and Batou work to try to stop a terrorist organization whose symbol is the Scylla. Meanwhile, Togusa investigates a murder of a man who possessed a prosthetic leg manufactured by the Mermaid's Leg corporation.

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.