Damon and Alaric face an old enemy after they obtain a weapon that may be able to destroy Cade. Meanwhile, Stefan is held captive by a surprising acquaintance and is forced to confront a dark secret from his past; and Cade digs deep in Bonnie's mind.

Cast: Paul Wesley, Ian Somerhalder, Kat Graham, Candice King, Zach Roerig, Matthew Davis, Michael Malarkey, Kenny Barr, John D. Hickman, Maurice Johnson, Brent McGee, Lily Rose Mumford, Tierney Mumford, Chris Wood, Michael David Yuhl