On Graduation Day, Mystic Falls is overrun with ghosts intent on settling old scores and fulfilling their supernatural destinies. Damon's life is in danger after a ghostly encounter, while Matt and Rebekah join forces to battle a ghost determined to find the cure. As everyone gathers for the graduation ceremony and the ghosts converge, help comes from an unlikely hero. Caroline receives a touching and unexpected graduation present, and Bonnie's plan leads to the closing of the veil. Elena makes a decision about the Salvatore brothers and faces an epic confrontation with Katherine. Finally, Stefan discovers a horrifying clue to the mystery surrounding Silas.