The Chinese government invite Tony Stark to Beijing to aid his health problems but really want to enlist Iron Man against the Mandarin. With Rhodey posing as Iron Man, he refuses to let Tony jeopardize his life and goes in Tony's stead.
Aliens crash land in the orient, explaining from whence came the stories of Dragons, and how Fin Fang Foom came to be on Earth. Most of the rest of the story is exposition and description of how fact got turned into legend. The ending comes as Iron Man comes face to face with Fin Fang Foom.