You are Lex Luthor. As a supervillain, you seek humanity's advancement and self-reliance through science. Your nemesis is Superman, an alien with fantastical powers whom humanity relies upon for protection from supernatural threats.
You encounter a wounded man, Clark Kent, who you believe you have never met before. He is identical to your nemesis, albeit that he wears glasses and does not immediately appear to be a superhero. It is clear that his fate lies solely in your hands.