Clark discovers that someone is hunting people who have been affected by the meteor rocks -- and the killer's next target is Lex. Clark uses his powers to save Lex but is caught off guard when the killer learns his weakness and shoots him with a kryptonite bullet. Meanwhile, Lex returns to work for LuthorCorp, but the animosity between him and his father continues unabated.

Season 3 | Episode 3

Allison Mack

Chloe Sullivan

Annette O'Toole

Martha Kent

Erica Durance

Lois Lane

John Schneider

Jonathan Kent

Kristin Kreuk

Lana Lang

Michael Rosenbaum

Lex Luthor

Tom Welling

Clark Kent