Black Jack returns to aid his comatose father and be a part of the family, but it is a ploy by his stepmother Renka's father, Zen Mantoku, to obtain his mother's pendant containing the microfiche. Jack refuses, but the organization's henchmen kidnap Pinoko and lure Black Jack in to a trap. Suddenly, Benitokage appears and saves Pinoko and Jack, but another henchman knocks them both out and takes Jack to meet Zen Mantoku, head of the organization and also Renka's father...