ALICIA RETURNS TO SMALLVILLE FOR CLARK – Claiming to be cured, Alicia Baker (Sarah Carter) is released from Belle Reve hospital and comes to Smallville to rekindle her relationship with Clark (Tom Welling). Initially skeptical, Clark finds himself enjoying dating someone who knows his secret, but when she pushes for more, he hesitates, causing her to use red Kryptonite on him. Clark, under the influence of red Kryptonite, whisks Alicia off to get married in Las Vegas. Meanwhile, Lana (Kristin Kreuk) ponders whether or not to take her relationship with Jason (Jensen Ackles) to the next level in order to win him back. Lex (John Glover) is unimpressed with Lionel’s (John Glover) claims of being a changed man.
JONATHAN FACES LIFE-THREATENING HEART SURGERY – While his father is awaiting 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.
CLARK’S SECRET IS REVEALED IN PART ONE OF THE SEASON FINALE – Dr. Walden wakes up from his coma and tells Lex and Lionel that Clark is an alien and must be destroyed. Meanwhile, a romantic encounter between Clark and Lana hints at a promising future, but after Chloe finds out they are together, Lana pulls back.