In a futuristic world where cybernetic enhancement of the human body is commonplace, the story unfolds around a counter-cyberterrorist unit known as Section 9. The protagonist is a female cyborg who leads the task force, her body fully artificial save for her human brain, which contains her consciousness or "ghost." She grapples with her own identity and fragmented memories, uncertain of what remains of her former self. The team is charged with hunting down a mysterious and dangerous extremist, known for hacking into the minds of enhanced humans and compelling them to commit acts of terrorism.

The investigation reveals broader implications as the squad uncovers a conspiracy linked to the protagonist's past and the corporation responsible for her creation. The plot delves into themes of identity, technology, and humanity as the protagonist struggles to discover who she was before becoming a cyborg. All the while, the team faces escalating challenges posed by their target, who seems to be always one step ahead, leading to high-stakes encounters with advanced weaponry and cyber warfare. The pursuit becomes personal as the protagonist confronts questions of self and the morality of artificial existence, against the backdrop of a society wrestling with the ramifications of human augmentation.