An imprisoned criminal scientist takes control of Iron Man in order to free himself. He threatens to blow up the world unless he is made world ruler. Iron Man stops him by shorting out his power and is helped by the villain's conscience-stricken daughter.; A wicked general plots the overthrow of his king, but is too afraid to try. He forces a gypsy sorceror to enchant him to remove his fear, and the man agrees, turning him into a toy soldier.; In the year 3000 a faster than light space ship is developed to take man to the very end of the universe. Since the scientists think the chances of returning are slim, they choose a pilot with an unhappy life of no family, friends, or job who doesn't really care if he can return as long as he learns the secret of the universe. He makes it all the way to the end and the ship actually does return to Earth, but when they bring out the pilot all he can repeat over and over is "I know!" The scientists realize they must abandon their quest since the pilot's mind has snapped with his realization, but observe that at least he has finally gained some measure of happiness.