Clark discovers the reason Lana married Lex then and sets out to kill Lionel. Lex tries to use DNA from the last phantom to power his super-soldiers. Lois goes to a dam to search for Lex's lab but is caught by a security guard and fatally injured. Chloe's power is discovered.
As the wedding guests prepare to leave the island, evidence leads the Sheriff to believe one of them is responsible for the deaths on the island. Also, Abby learns a dark secret linking her to Wakefield.
