Two years have passed after the world learned that the billionaire inventor Tony Stark is the Iron Man. The public demands that Stark gave his cyber suit to the US government, but Tony doesn’t want to disclose all his secrets, as he is afraid they will fall into the wrong hands. Meanwhile, Ivan Vanko, the son of a Russian scientist, who used to work for Tony’s company, is willing to take revenge for his family’s troubles, and designs a high-tech weaponry.