After Lana (Kristin Kreuk) is visited by the ghost of a childhood friend, she turns to Clark (Tom Welling) for help in uncovering the truth about her new visitor. However, after Clark realizes the little girl is actually a kryptonite-enhanced clone, he rushes to save Lana before the revenge-seeking child harms her. Lex (Michael Rosenbaum) learns that Lionel (John Glover) is funding the krypto-cloning research.