Outbreak (S01E05)

Dr. Tanaka alerts Tony about an alarming epidemic that has emerged close to the Arc Station. This lethal disease seems to be beyond control, prompting Tony to launch his own inquiry into its origins. At the same time, the Self Defense Forces' reconnaissance satellites start malfunctioning, leading Nagato Sakurai to seek Iron Man's assistance. Together, Stark and Sakurai uncover that the Zodiac Mech Aquarius might be linked to both the epidemic and the satellite issues.