The Kandorian army plotline from this season of Smallville is so achingly dull that almost any one-off episode that deals with something else is welcome. Especially when the episode introduces new, ridiculous, twentysomething versions of established DC Comics characters. So after last week's "I am your father's clone" episode, I am actually excited to watch this week's, in which two superheroes try to help the Blur clean up Metropolis in their own, less-than-experienced way. Those two heroes? The Wonder Twins.