It’s high time that Elena turned that pesky humanity switch into the “on” position, yea?

The Vampire Diaries "She's Come Undone"

The Vampire Diaries “She’s Come Undone”

Is The Vampire Diaries on and new tonight? Yes! Season 4 is bringing us episode 21, which is titled “She’s Come Undone.” It airs tonight, May 2 2013 at 8 pm EST on The CW.

In the episode, our favorite vampire brothers are trying to get their old Elena back. Caroline will try to help, but….let’s just say it won’t go as she plans. And there will be a surprising appearance by someone Elena knows. (Will it be Matt?)

The Vampire Diaries “She’s Come Undone” Synopsis

Damon (Ian Somerhalder) and Stefan (Paul Wesley) try a brutal new approach to provoke Elena (Nina Dobrev) into turning her humanity back on, and Caroline (Candice Accola) is frustrated when her attempt to intervene backfires. When Elena figures out a way to call the Salvatore brothers’ bluff, they call for backup from a surprising source.

Darnell Martin directed the episode written by Michael Narducci & Rebecca Sonnenshine.

Photos: The CW. The Vampire Diaries Season 4 Episode 21 “She’s Come Undone”