The Vampire Diaries season 4 episode 15
Episode title: Stand by Me
When Stefan arrives back in Mystic Falls with Elena and Jeremy, Caroline is immediately worried about Elena’s state of mind. Stefan reaches out to Dr. Fell and Matt for help. Still on the island, Damon relays somber news to Rebekah, and is surprised at her reaction. Together, Damon and Rebekah learn an unexpected bit of recent history from Vaughn. Everyone is horrified when Bonnie reveals the rest of Shane’s plan. Finally, after Damon does his best to help her, Elena comes up with a plan of her own.
