Dr. Walden wakes up from his coma and tells Lex and Lionel that Clark must be destroyed; Chloe finds out Clark and Lana are together.

What's up with Lana? Lana surprises Clark with a cake for his birthday. Its really the day the Kents picked off the calendar from his adoption, so Clark is not too eager to celebrate. Lana asks him to make a wish. "I've been wishing the same thing since I was five," Clark says, "now I don't have to, she's standing her in front of me." He takes Lana in his arms and they kiss. The next day at the Talon, there is an awkward moment between Clark and Lana when Chloe comes in. Lana tells Clark it might be a mistake. Clark later asks Lana if her reluctance is to protect Chloe's feelings. Lana admits she is afraid to put any of their friendships at risk. Clark tries to convince her that it is worth the risk. Suddenly Clark hears a voice "the day is coming." He leaves Lana to follow it.

What's up with Dr. Walden? In a coma since the incident in the caves, Dr. Walden awakens. He tells Lex "the day is coming." Dr. Walden's blindness and cataracts disappear. While under medical observation, he breaks out through a glass wall using a powerful ray of light emitted from his hand. Lex shows Clark the padded room where Dr. Walden was held. Dr. Walden has burned symbols into the room. Clark claims ignorance.

Back at the cave, Dr. Walden activates the wall using the power of light from his hands, rearranging the message. On the cave wall, he sees a figure of a man and says to himself, "I know who you are."

What's up with Lex? Lex invites Jonathan and Martha to be seated at a a place of honor at the head table at his wedding rehearsal dinner, since his own parents won't be there. They accept. As the best man, Clark is busy preparing a toast. Clark invites Lana to the party.

What's up with Helen? Lex's fiancée Helen suggests Lex reconcile with Lionel before the wedding, but he refuses. Helen's office at the hospital is vandalized. An unmarked vial of Clark's blood has been stolen. What's up with Lionel? Lionel catches Helen snooping in files at the mansion. She has found a file on Martha Kent. Lionel insinuates that Lex broke into her office at the hospital. Helen accuses Lionel. Later while looking for Dr. Walden in the caves, Lionel finds Clark there. Lionel tries to get info from Clark when he notices that the symbols on the wall have moved and changed.

Lionel goes back to the mansion, finding Lex. Dr. Walden bursts in and tells Lex and Lionel his interpretation of the cave symbols, and that he knows that the "last son" is Clark Kent, who must be killed. The doctor treating Dr. Walden arrives and shoots him with a tranquilizer.

What's up with Clark? At home telling his parents what has happened, Clark reveals his worry over the message now on the cave wall that says "The day is coming when the last son will begin his quest to rules the third planet." At the rehearsal dinner, Clark can't take his eyes off Lana. Lex privately tells Clark about Dr. Walden's ravings about Clark ruling the world. Lex warns Clark that Lionel won't let it drop.

Clark proposes his toast as the best man. His words about the love between Lex and Helen are also directed at Lana. After the toast, Clark gets a migraine-like pain, and excuses himself from the party. He knows there is something wrong with the key at home and rushes there to find Dr. Walden holding the key. Dr. Walden uses the power in his hands to direct energy, pushing Clark through a wall and lifting him into the air. Clark defends himself using heat vision. Dr. Walden's energy backfires when a propane tank explodes and he is burned to death. Clark recovers the key.

What's up with Chloe? Chloe suspects Clark and Lana were together on Clark's birthday night when Lana didn't return home until 2 a.m. She makes attempts to mend her friendship with Clark. Clark tells her it'll take time. Chloe asks for honesty. At the Torch office, Lionel tells Chloe he has arranged for her weekly column in The Daily Planet. Lionel asks Chloe to write a story on Clark and the Kents for his personal use. Chloe refuses. Planting doubt, Lionel asks if Clark would sacrifice his dream out of loyalty to Chloe.

How it ends: Alone at the mansion, Helen tells Lex she found his copy of the confidential medical records on Martha Kent. Lex explains he obtained them out of concern for Martha's health. Lex tells Helen "If you think I'm capable of that kind of deceit, maybe you shouldn't be marrying me." "Maybe you're right," replies Helen as she leaves. Lex opens a box containing a vial. It is the blood sample stolen from Helen's office.

Prior to Dr. Walden's autopsy, Lionel views the body. Burned beyond recognition, the palm of Dr. Walden's hand bears an imprint of the key. Under the impression, the skin in not burned. Lionel asks that the hand be sent to him.

After the party, Lana visits Clark in his barn loft. She compliments his toast speech. He tells her she was his inspiration. They kiss. Chloe peeks in and seeing them together, tearfully runs away. After Lana leaves, Clark hears a voice "Kal el...it is time," which draws him outside and into the glowing storm cellar.

TO BE CONTINUED...