A dash of betrayal, a secret revealed, and a love confession all made up Smallville's much-awaited episode. Structured in three angles, Clark's, Lex's and Lana's, "The Promise" started off with all the wedding preparations and setups.
Clark's plot was filled with puzzlement and odd dreams of him stabbing Lex to save Lana and Lana stabbing Clark in turn. In addition, there was much contemplation on his feelings for Lana, exploring the relationship of Jonathan and Martha. Later, he saves Chloe who is trapped in the wine cellar. Not knowing that Lana is hiding in the shadows, Clark uses his powers to free Chloe who argues with Clark over his feeling for Lana.
As for Lex, he also had his share of dreams about Lana and the baby. After some doubts and suspicions, he meets with Lionel who assures him that Lana will be there at the wedding. Later, Lex meets with Dr. Langston, who blackmails Lex with the information about Lana's pregnancy. Consequently, Lex beats him to death and hides his body.
Lana also starts her plot with a dream about Clark rescuing her. Later, she meets up with Chloe and asks her to go down the wine cellar. Chloe gets trapped and secretly calls Clark for help. Afterwards, Lana discovers Clark's secret.
Eventually, Clark tells Lana his secret and Lana tells him that she's not going to marry Lex. She arranges to meet up with him later. Shortly, Lionel Luthor confronts Lana and threatens to destroy Clark if she does not go through with the wedding. Clark, who is about to propose to Lana, realizes that Lana is not coming. He arrives at the church and witnesses Lex and Lana ?s wedding.
