Deep inside the electronic infinity of the enemy Decatonale supercomputer, cyber-agent Motoko Aramaki plays hide-and-seek with the system's digital defenses to get the root of the terrorist attacks plaguing Poseidon International. It's been a tough cyber-fight, but one that becomes even tougher when Motoko Aramaki encounters a new adversary, the one-and-only Motoko Kusanagi, whose personality is embedded in the core of her own multi-identity. And when the entities begin to spontaneously fuse, the existence of each- or both.- hangs in the balance.