Iron Man 3 (2013)
Iron Man 3 (2013) – The Battle Within
Following the events of The Avengers, Tony Stark (Robert Downey Jr.) suffers from anxiety and PTSD, struggling with the aftermath of the Battle of New York. As he obsessively builds new Iron Man suits, a new threat emerges—the mysterious terrorist Mandarin (Ben Kingsley), who orchestrates devastating bombings across the country.
When Tony publicly challenges the Mandarin, his home is attacked and destroyed, forcing him to go into hiding. Stranded and without his usual resources, Tony investigates the bombings and discovers that the attacks are linked to Extremis, a dangerous biological enhancement program created by Aldrich Killian (Guy Pearce), a scientist Tony once dismissed.
As Tony uncovers the truth, he realizes that the Mandarin is just a decoy, while Killian is the real mastermind behind Extremis and its super-enhanced soldiers. In the final battle, Tony and War Machine (Rhodey) fight Killian’s Extremis army, using an army of remote-controlled Iron Man suits. Tony ultimately defeats Killian by trapping him in an explosive suit.
At the end, Tony undergoes surgery to remove the arc reactor from his chest, symbolizing his personal growth beyond Iron Man. However, he assures that, despite destroying his suits, “I am Iron Man.”
A thrilling mix of action, humor, and emotional depth, Iron Man 3 explores Tony Stark’s vulnerabilities while proving that the man, not the suit, makes the hero. 
