Tony Stark is a billionaire that gets kidnapped while displaying his new missiles to the military. He is forced to build missiles for a terrorist organization, called the Ten Rings. He then creates the arc reactor which is a source of energy.
Test / Allies / Enemies
Tony then uses the arc reactor to power a suit made of missile parts to escape the cave he was being held captive in. After realizing his weapons have been sold to terrorist, he stops his company from manufacturing weapons and does nothing for his industry for the next 3 months.
After making a better arc reactor than the one he made in a cave, Tony then begins thinking of the possibilities that he could apply this new arc reactor technology too and then invents the Iron Man suit.
Enemies / Return
With the new power of the Iron Man suit, Tony goes back to where he was held prisoner and frees families that were also forced into slavery by the Ten Rings. Tony's military friend, Rhody makes sure that the U.S. military does not interfere with his mission.
Tony's long time mentor, Obadiah Stain, creates a suit of his own and steals Tony's arc reactor to power it. Tony then finds the arc reactor he built in a cave and goes after Obadiah.
Tony then defeats Obadiah, out in the public at night. With many pictures of the battle taken people begin to wonder who is the Iron Man. Tony then returns to a press conference where he is told to inform the public that it was his high tec bodyguard, but instead reveals to the public that he is Iron Man.