Clark joins the football team at school and immediately gets promoted to starting quarterback after the former quarterback fights with Jason, the team's new assistant coach. Curious about the behavior change in his teammate, Clark and Lois investigate and discover that the cheerleaders are poisoning the team's water with Kryptonite, turning the players into perfect boyfriends.

Season 4 | Episode 4

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