Fan Casting The Invincible Ironman

Cocky tech billionaire Tony Stark is going through an existential crisis in the middle of a military conflict in the Middle East, when he is injured in a car bombing. Saved by an electronic pacemaker surgically implanted inside his chest, Stark decides to get back at the terrorists who blew him up that are moving in to New York to carry out their weapons-smuggling operations. He does this through designing and testing weapon-storing metallic suits, and Iron Man is born.