Clark Kent grew up and was raised here on Earth since he was just a baby, and is currently in his second year of activity as a hero, since he decided to use his powers to help the world, and as a new intern in the "Daily Planet". People are divided over this superman. And the millionaire, Lex Luthor, sees the alien as a potential threat and wants to use everything he has to pit public opinion against the hero.
During the film, Clark still wouldn't have his hero name. Lex would create Metallo and Bizarro to try to destroy Superman. The final battle would be between Lex Luthor, in his Kryptonite armor, and Superman in the middle of the city, after defeating Luthor, Clark would meet "Superboy" a clone that Lex would have made of Superman.
Mid credits: Lois would get confidential files from LexCorp, revealing a study about Atlantis.
Post-credit scene: Luthor would checkmate by releasing a video, modified by LexCorp, to look like Superman would have attacked and tried to kill Luthor
