The animes story is set in 2027, one year after the end of the fourth non-nuclear war. New Port City is still reeling from the wars aftermath when it suffers a bombing caused by a self-propelled mine. Then, a military member implicated in arms-dealing bribes is gunned down.

During the investigation, Public Security Sections Daisuke Aramaki encounters Motoko Kusanagi, the cyborg wizard-level hacker assigned to the militarys 501st Secret Unit. Batou, a man with the eye that does not sleep, suspects that Kusanagi is the one behind the bombing. The Niihama Prefectural Police detective Togusa is pursuing his own dual cases of the shooting death and a prostitutes murder. Motoko herself is being watched by the 501st Secret Units head Kurutsu and cyborg agents.

(Source: ANN)