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.

A group of UAC Marines responds to a distress call from a top-secret scientific base on Phobos, a Martian moon, only to discover it's been overrun by demons.