Atom is back, and the fate of the earth is in his hands! Having escaped death's grasp, Atom now has all the answers to the unsolved mysteries around Pluto, Bora and more. With the memory of his fallen brethren--Gesicht, Mont Blanc, North No. 2, Brando, Hercules and Epsilon--etched deeply into his heart, Atom is headed for one last battle to save the world!