Tony Stark is a physicist, an engineer, and the CEO of a major arms manufacturing company. On a battlefield he is injured from his own weapons and taken prisoner by terrorists. In order to keep his own heart beating, he creates the Ironman Suit and escapes. Once free, Stark decides to dedicate his life to pursuing world peace with the Ironman technology, so he moves to Japan to use the resources of "Lab 23," home of the world's first Arc Reactor. Wanting to devote himself fully to this research, Stark decides to retire as Ironman and announce the mass-production of suits to fulfill his duties. But at the announcement ceremony he is attacked by the mysterious organization known as "Zodiac," and his plans have to change.

Source: ANN