The United States hears the news of the Soviet Union's newest weapon to win the Cold War: Superman. American scientist Dr. Lex Luthor works to create a tool to beat Superman.
Superman saves America from being hit by a Soviet satellite, and meets Lois Lane for the first time. Stalin's Chief of Police and son, Pyotr, complains that Superman will gain more power than he will in the Soviet Union.
At a party in his honor, Superman meets Wonder Woman connects with her. Later, he tries to calm Pyotr's fears that he will never share the influence over the Soviet Union. Pyotr speaks of his disillusions with the Soviet Party.
Lex shows signs of further insanity. Meanwhile, Superman decides to save the people by leading the Soviet Union. Brainiac appears, shrinks the city of Stalingrad and Superman is helpless to save them.
Lex forgets his anniversary with Lois and divulges there may be a third alien who has landed on earth. Pyotr starts spreading the word that he wants to meet with Batman in order to ally against Superman.
Luthor introduces military pilot Hal Jordan as his secret weapon. Lois Luthor visits Wonder Woman with a surprising request. Lex visits Superman and Brainiac intervenes. Superman is forced to initiate the America attack against his will.
Superman battles the Green Lantern Corps, Wonder Woman and other villains. In trying to evacuate Lois, Superman confronts the one thing that weakens his resolve. Superman plans to head back to the Soviet Union.
Superman must decide whether or not to save America when Brainiac's power source is about to detonate. Lex Luthor's dominance grows throughout the world until his death. A child is sent to Earth from a doomed world.