Smallville: Season 3, Episode 15

3 - 15: Resurrection

While his father is awaiting life-threatening heart surgery, Clark befriends a young boy, Garrett, whose brother Vince just died from liver failure. However, everyone is shocked when Vince shows up at the hospital alive and seemingly well -- until his liver starts failing again. In a desperate attempt to keep his brother alive, Garrett straps a Kryptonite bomb to himself and demands that Vince be given Jonathan's liver or he will blow up the building...