In a cyberpunk city ravaged by acid rain, Police Chief Kane finds his long-lost daughter Lena. Abandoned by enemies and with limbs corroded by acid, she is fitted with top-tier mechanical prosthetics and implanted with the police department's highest-authority key left by Kane's late wife, as he prepares to hand over command. The android Vera, jealous, repeatedly harms Lena, fakes her death, and tricks Kane into sending her to a recycling chamber. Kane senses something wrong, breaks in, and rescues Lena, who is near shutdown. Vera is exposed, stripped of her prosthetics, and abandoned in the scrap zone, later rescued by a mysterious cloaked figure. Lena clears her name, becomes the sole legitimate heir, and father and daughter are reunited.
