Lionel has a lesson for Connor in this Smallville clip. What does it mean to be a Luthor?
A major reveal takes place on this episode of Smallville. Enjoy your first look at "Scion" via this official CW preview.

Smallville Season 10 Episode 16 Quotes

Lionel: You can't hide Alexander from me forever.
Tess: I'm saving him from an encore performance of Daddy Dearest.

So it's not just the Luthor males who like secrets.