A strange infection that turns victims' bodily fluids blue has arisen, with Tony's in-progress Arc Station suspected to be the cause. Meanwhile, the JSDF satellites have been compromised and Sakurai implores Tony's help, in which they discover SAT-1 to be the source of the illness. Using Dr. Tanaka's prototype technology and a ride from Sakurai, Iron Man gets to SAT-1 and finds the Zodiac robot Aquarius using the satellite to induce the sickness through radiation, which he engages and destroys.