After being deemed unfit for military service, Steve Rogers volunteers for a top-secret research project that turns him into Captain America, a super hero dedicated to defending America's ideals and leading the fight for freedom as the ultimate weapon against evil. When a terrifying force threatens everyone across the globe, the world's greatest soldier, joined by an english spy, an android, an atlantean mutant and his best friend wages war on the evil HYDRA organization, led by the villainous Red Skull.