"The Walking Dead" (#4.22)

Whenthe graduation day is coming, Caroline (Candice Accola) tries to distract Elena (Nina Dobrev), focusing on simple tasks like sending notices, but Elena reminds of her new obsession. The Sheriff Forbes (Marguerite Maclntyre) call Damon (Ian Somerhalder) and Stefan (Paul Wesley) to the hospital, where someone has been attacking patients still trying to force Katherie to help her, Bonnie (Kat Graham) refuses to give up its plan to defeat Silas. When a violent wind storm causes a blackout in Mystic Falls, ghosts suddenly appear with some good intentions and some plans of revenge. Zach Roering and Claire Holt also participate. Rob Hardy directed the episode written by Caroline Dries and Brian Young.