The Vampire Diaries - Season 4 Episode 21 - Video Preview - She's Come Undone

Here's the video preview of The Vampire Diaries Season 4 Episode 21: "She's Come Undone" on The CW. Brutal methods to make Elena more humane.

The Vampire Diaries 4x21 'She's Come Undone' - Damon and Stefan try to get Elena to become more humane, but their approach is brutal. Meanwhile, Caroline experiences a dangerous encounter with Klaus; and Bonnie becomes suspicious when Katherine makes her an offer that supposedly benefits each of them. Original Air Date: May 2, 2013 on the CW.