Elena (Nina Dobrev) asks Stefan (Paul Wesley) to escort her to the town's annual Founder's Party. Vicki (Kayla Ewell) gets Tyler (Michael Trevino) to ask her to the party, then accuses him of trying to hide their relationship from his family. Zach (guest star Chris William Martin) reveals a useful family secret to Stefan. At the party, Damon (Ian Somerhalder) tells Elena a story about the Salvatore family's past, leaving Elena with questions that Stefan refuses to answer. Finally, Stefan takes action to get Damon out of his life for good.