The Walking Dead 4x22

THE WALKING DEAD- As Graduation approaches, Caroline tries to distract Elena with simple tasks, such as sending out announcements, but Elena won't give up her new obsession. Sheriff Forbes asks Stefan and Damon to help her, when someone starts attacking patients. Bonnie is trying to make Katherine help her and she won't give up on her plan to defeat Silas. A wind storm causes power outage on Mystic Falls and ghosts appear, some bearing good intentions and others wanting revenge.