March 6, 2035. Motoko Aramaki is a hyper-advanced cyborg, a counter-terrorist Net security expert, heading the investigative department of the giant multi-national Poseidon Industrial. Partly transcending the physical world and existing in a virtual world of networks, Motoko is a fusion of multiple entities and identities, deploying remotely controlled prosthetic humanoid surrogates around the globe to investigate a series of bizarre incidents.