Clark encounters a surprising new foe when Abigail Fine (Brianna Lynn Brown), a shy high school girl, undergoes plastic surgery to enhance her looks and boost her popularity. But she discovers that her kryptonite-enhanced beauty causes harm to anyone she kisses -- and Abigail decides her next victim will be Lana. Meanwhile, Jason and Lana continue to hide their relationship from Clark.

Season 4 | Episode 3

Allison Mack

as Chloe Sullivan

Annette O'Toole

as Martha Kent

Erica Durance

as Lois Lane

John Schneider

as Jonathan Kent

Kristin Kreuk

as Lana Lang

Michael Rosenbaum

as Lex Luthor

Tom Welling

as Clark Kent