You are a Kryptonian just like Clark (aka super-man) but unlike super girl, you are not related to him in the slightest. Before he was born you were exiled to another system with a green sun giving you very little power to survive off for years.

30 years have passed since your banishment. you've become a feared warlord fighting people just to get a few plants, which is insanely rare in the barren planet you landed on since your banishment. Until one of your men tell you about earth, a small, ecologically perfect planet. so you decide go to the planet by yourself.

you finally land on the planet, specifically on a large field in the United States. you thought that the only species roaming the planet were a few animals.