Official Description

RED KRYPTONITE RETURNS AND "BAD CLARK" KISSES BOTH LOIS AND LANA - After Lois (Erica Durance) tries on lipstick made with red kryptonite, she becomes overwhelmed with desire for Clark (Tom Welling) and makes her move. The two share a kiss, transferring the red kryptonite to Clark and his inhibitions immediately shut down causing "bad Clark" to emerge. Fueled by the red rock, Clark decides to break up Lex (Michael Rosenbaum) and Lana's (Kristin Kreuk) wedding dinner and kidnap the bride-to-be.

Allison Mack, John Glover and Annette O’Toole also star.

Written by Brian Peterson and Kelly Souders
Directed by Glen Winter