In a nightmarishly vast, self-expanding techno-megacity where humanity teeters on the brink of extinction and killer machines purge all “illegal residents,” a stoic and enigmatic wanderer armed with a mysterious weapon embarks on an obsessive hunt for the fabled Net Terminal Genes (the only hope to reclaim control of the city), forging fragile alliances and confronting inhuman abominations in an endless odyssey through ruin and revelation.