"Superman: The Man of Steel," we follow the early years of Clark's life from his birth on the planet Krypton, his subsequent arrival on Earth, his upbringing by Martha and Jonathan Kent in Smallville, and his eventual decision to use his superhuman powers to become Earth's greatest superhero. In this film, Clark must face off against his first major villain, General Zod, who has followed him to Earth in search of the ultimate weapon, the Codex. As Superman battles the forces of General Zod, he begins to realize his true purpose on Earth and sets the stage for the next two films.