Held responsible for the event at the Arc Station, Tony Stark is arrested by the Japanese government. But while being transported, explosions rock the Diet parliament building, and suspicions are raised that Stark is behind it. Will Tony Stark be able to clear his name, and take out the real threat behind the Diet bombing?
The plutonium needed to prime the Arc Station is stolen and Tony must don the Iron Man armor and fight against Dio. The two Iron Men must fight to the death, with the fate of Japan hanging in the balance.
Tony Stark meets Aki, a mysterious young girl with strange powers. Tony is shocked when the girl tells him that she belongs to Zodiac and mentions that she needs Tony, as Iron Man to protect her from Zodiac. Is Aki who she says she is? And even if she is, how can Tony trust her?
Tony and Dr.Tanaka are wake up on an isolated island with no idea how they got there and no hope of getting off the island. Missing his life-saving arc reactor and without his Iron Man armor, how will Tony and Chika be able to escape? And, who put them there in the first place?
Tony Stark is backing a charity racing event in order to burnish the image of Stark Industries. Meanwhile, Kawashima, a race car driver who's suffered career-threatening injuries, is won over by A.I.M./Zodiac who promise him they will heal his injuries if he takes out Tony Stark.
Tony Stark arrives in Japan with the aim of setting up the Arc Station in the first step in his World Peace Initiative. In front of all of Japan, he announces his new Iron Man model, Iron Man Dio, with himself in the pilot's seat. But during the demo, Dio crashes after a mysterious bug in the operating system.