Clark is temporarily blinded but develops super hearing to compensate for his lack of sight. He struggles to master his new power.
A wannabe prom queen crashes her car into a ravine filled with kryptonite, releasing her spirit and affecting the behaviour of others; Lex gives the seniors a special gift by booking the band Lifehouse to perform at the prom.
Clark is shocked when he sees his father's ghost at the graveyard; Lex manages to develop a vaccine for Fine's virus.
Flynn and Vega follow clues that lead to a nerdy gun collector when a young art aficionado is shot and killed.