Billionaire weapons manufacturer Tony Starch has it all: the money, the mansions, and an appetite that matches his ego. When he's captured by terrorists and forced to build a weapon of mass destruction, he instead builds a suit of armour powered by a miniature arc reactor and a dangerously high calorie intake. Now back home with a new perspective on life, Tony must decide whether to continue feeding the war machine or use his genius to protect the world, one oversized repulsor blast at a time.