The story of 'Superman: Man of Steel' is about Clark Kent, who is Superman. He is an alien from Krypton. As he grows up on Earth, he discovers his superhuman abilities. He has to face the challenges of hiding his true identity while also protecting the world from threats. For example, he battles General Zod, who is also from Krypton and wants to terraform Earth to make it like Krypton.
Superman: Man of Steel tells the origin story of Clark Kent, a.k.a. Superman, as he discovers his powers and decides to use them to protect Earth from various threats.
In certain comic versions, Superman is forced to take the extreme measure of killing Zod due to the circumstances and threats posed. However, this action often has significant consequences for Superman's character development and moral conflicts.
In certain comic arcs, Superman was forced to take that extreme action against Zod due to the circumstances and threats posed. It was a complex and controversial moment in the comics.
General Zod and Doomsday are not the same. General Zod is a Kryptonian villain with his own distinct traits and motives, while Doomsday is a powerful and destructive creature. They have different origins and storylines in the comic universe.