After being deemed unfit for military service, Steve Rogers volunteers for a top secret research project that turns him into Captain America, a superhero dedicated to defending America's ideals. Captain America leads the fight for freedom as the ultimate weapon against evil. When a terrifying force threatens everyone across the globe, the world's greatest soldier wages war on the evil HYDRA organization, led by the villainous Red Skull.
When patriots become heroes. During World War II, Steve Rogers is a sickly man from Brooklyn who's transformed into super-soldier Captain America to aid in the war effort. Rogers must stop the Red Skull – Adolf Hitler's ruthless head of weaponry, and the leader of an organization that intends to use a mysterious device of untold powers for world domination.. Captain America: The First Avenger Wiki