Six months have passed since the world learned that billionaire inventor Tony Stark is the owner of Iron Man's unique cyber armor. The public demands that Stark transfer the armor technology to the US government, but Tony does not want to divulge its secrets because he is afraid that it will fall into the wrong hands. Meanwhile, Ivan Vanko is the son of a Russian scientist who once worked for Stark's company, but then fired and deprived of everything, he intends to take revenge on Tony for the troubles of his family. Why does he build his high-tech weapons?