Plagued with worry and insomnia since saving New York from destruction, Tony Stark (Robert Downey Jr.), now, is more dependent on the suits that give him his Iron Man persona -- so much so that every aspect of his life is affected, including his relationship with Pepper (Gwyneth Paltrow). After a malevolent enemy known as the Mandarin (Tony Leung Chiu-wai) reduces his personal world to rubble, Tony must rely solely on instinct and ingenuity to avenge his losses and protect the people he loves.
