Smallville II (3/23)

After one of his friends discovers Clark's spaceship in the cornfield, Clark defies his parents' wishes and reveals his secret to the person--who gives him a shocking reaction. Meanwhile, Lex clashes with one of his scientists, Dr. Steven Hamilton (recurring guest star JOE MORTON).

Tom Welling, Michael Rosenbaum, Allison Mack, Kristin Kreuk, Annette O'Toole, John Schneider