Yankee Doodle Jones was an American artificial man created by an unnamed scientist using body parts taken from three crippled American World War I veterans who volunteered to give up their lives for the sake of creating "an American champion." After the resulting being was brought to life, the scientist injected him with a "secret fluid" that gave him heightened strength and speed as well as near-invulnerability. The scientist's unnamed son watched it all from the sidelines. He marveled at the secret fluid's effects and wished that he, too, would get a shot of it.