Yang Fang Yu abducts mercenary Max Neumann thinking that he kidnapped the researchers, but he denies that it was him. Fang Yu releases Neumann, however she planted a bug in him, and they track him to a ship moored offshore. Fang Yu finds out that her lover, Cheng, used her to smuggle the virus into Japan and that he is behind the attempt to create a vaccine. She swims out to the ship alone seeking revenge.