The Vampire Diaries (2009)

S4E14 Down the Rabbit Hole

Title: Down the Rabbit Hole Plot: On the island, Damon has a tense encounter with a Hunter named Vaughn, discovering he is part of The Five. Meanwhile, Stefan opens up to Elena about his hopes and fears regarding his potential return to humanity. A shocking revelation about the cure emerges, raising the stakes for everyone involved. Jeremy assists Bonnie in distinguishing reality from illusion, while Shane finds solace in the presence of Caitlin, a woman from his past. Back in Mystic Falls, Caroline and Tyler realize they cannot decipher the code on the Hunter's Sword without assistance from Klaus, who has his own motives for unraveling the mystery.