Kevin (guest star), a boy who can cause people to temporarily lose their memory, turns his powers on Clark (Tom Welling) and causes him to have total amnesia. Chloe discovers what has happened and must teach Clark about his superpowers while simultaneously trying to keep him from accidentally revealing them to others. On his trip down memory lane, Clark meets Lana (Kristin Kreuk), falls in love all over again and decides to share his secret with her. Lex (Michael Rosenbaum) takes advantage of the situation and convinces Clark to show him where the three stones are hidden.
Jensen Ackles, John Glover, Annette O’Toole and John Schneider also star. Jeannot Szwarc directed the episode written by Brain Peterson & Kelly Souders.
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