I think the kryptonite idea and the mutated human villains is kind of stupid. I believe Clark Kent didn't discover that he had a vulnerability until way after he became Superman, at least that's how it was in the old Superman with George Reeves, Superman the movie with Christopher Reeve, and Lois & Clark with Dean Cain.
And the mutated humans are stupid... that's why I think Rogue and Obscura were the better episodes because the villains were completely human... and they were both corrupt cops too, so that shows how realistic the writers were trying to be in that episode.
As for episode 21, I've been at it for 3 days. Episode 20 didn't even appear there until like Tuesday. I'm downloading two EP 21s... one is 253 megs and the other is 444 megs. They can't both be bullshit.
-Warik