At the start of season one, Clark Kent (Tom Welling) is a young man with superhuman abilities that's trying to figure out his place in this world after discovering he's an alien. Throuhout the seasons, Clark Kent is slowly becoming more and more Superman, discovering his abilities as time goes on.
At the start of the show, Clark is friends with billionaire Lex Luthor, whose life he saved. Of course, later on Lex would go on to become his nemesis before leaving the show
Clark has had an on and off again relationship with Lana Lang and in the latest seasons, fans have been hoping for a Lois and Clark finally.
Now, Clark works at the Daily Planet and is forced to meet all sorts of fun villains from the DC Universe.
Lex: The two theories seem to be I either ran the plant into the ground through incompetence or did it deliberately so that I can go back to Metropolis.
Clark: Your dad already offered you a job in Metropolis - just tell people the truth.
Lex: Then they get stuck with the incompetence rap. Being reviled is the lesser evil.
(after catching his parents "counter macking") I did not need to see that!Clark