The Kid and Stripesy must take on the French dictator, Napoleon, to prevent him from obtaining a large quantity of gold that will help finance Dr. Doome's secret machine.; Green Arrow and Speedy take on Alexander the Great and an army of radium powered robots in a fight to the finish.; The Shining Knight must halt the plans of 13th Century conqueror Genghis Khan from keeping the large supply of platinum his men have stolen for Dr. Doome.; Vigilante travels to the Black Hills of South Dakota and the famed Mount Rushmore memorial to stop Attila the Hun from making off with a supply of Tantalum.; Dr. Doome's plan to obtain the metals necessary to build a gateway to the future moves to the East Coast, where the Crimson Avenger must wrest a valuable supply of uranium away from Nero.; A self-proclaimed great scientist, by use of a time machine, brings five of the greatest conquerors of all time to the present and engages them to seek out the five rarest metals on Earth, all to help him build a machine that will open the gate to the future.; The Legionnaires must battle their way past Ulysses and his forces to reach Dr. Doome, who manages to escape into the future before his machine blows up.