"Founder's Day" is the 22nd episode of the first season of The CW television series The Vampire Diaries and the 22nd episode of the series overall. It also consists the last episode of the season. It originally aired on May 13, 2010. The episode was written by Bryan Oh and Andrew Chambliss and directed by Marcos Siega. Plot Everybody gets ready for the Founder's Day parade and gets dressed up in period outfits, including Elena (Nina Dobrev), something that makes her look like Katherine even more. Damon (Ian Somerhalder) tells Stefan (Paul Wesley) that he does not need to worry since he will not steal his girlfriend. Anna (Malese Jow) shows up in Jeremy's (Steven R. McQueen) room to tell him that John (David Anders) was the one who killed her mother and she wants to leave town. She gives Jeremy a vial with her blood telling him that she could turn him to go with her if he wanted to but Jeremy changed his mind since the first time he asked her to turn him. Elena is shocked by the news Stefan told her; that John is her birth father. Elena wonders if she has to confront him and ask him if it is true while she is also worried if Jeremy will ever forgive her. She tries to talk to him but Jeremy tells her to go to hell, something that Damon catches from afar. He follows Jeremy and aggressively tries to tell him not to treat Elena that way. Stefan interferes, apologizing to Jeremy for everything that happened, but Jeremy still does not feel like forgiving Elena. Tyler (Michael Trevino) tries to make up with Matt (Zach Roerig) but Matt is still mad at him. Caroline (Candice Accola) tries to talk Matt into forgiving Tyler but he cuts her off. Meanwhile, Damon thanks Bonnie (Kat Graham) for removing the spell from the Gilbert device that could have killed him. While the parade is in progress, John explains to Mayor Lockwood (Robert Pralgo) the plan of how they will use the device to find the vampires, who plan to attack the town in the night, and kill them. When the device is activated, it will produce a high pitched sound that humans will not be able to hear and it will force the vampires to reveal themselves. The council's team will inject them with vervain and gather them