It’s all come down to this episode for Vampire Diaries fans. During the hour, Uncle John sets a plan in motion that has dangerous consequences for all at the Founder’s Day festival.

Isobel is back this week, and she has a demand for Alaric: set up a meeting with Damon. She also interacts with her daughter, but it doesn’t exactly go well.

This is a significant episode for one major reason: Elena learns just how Stefan and Damon were turned into vampires!

Damon is Elena’s date for the Mystic Falls pageant this week. Stefan continues to battle his blood addiction.

Welcome to The Vampire Diaries, David Anders. The actor guest stars on this week’s episode.

Stefan and Damon make a dangerous new enemy, and when that lands Stefan in trouble, Damon and Elena try to convince Alaric to work with them to help Stefan.

Anna brings a surprising guest to see Damon. Elena and Stefan go on a date with Carolina and Matt. Jenna reunites with old friend Kelly.

On this episode of The Vampire Diaries, viewers meet a new vampire. Matt’s mother also comes to down.

This week’s episode is titled “Fool Me Once.” Read on for a detailed recap of events from it.

Ready to flashback again? This episode takes viewers to a different century and introduces them to Katherine once more.