The Vampire Diaries - 6x09 "I Alone" Official Synopsis

A DEAL WITH THE DEVIL — Damon (Ian Somerhalder) finds himself in hot water after he carries out a plan that requires Alaric’s (Matt Davis) unwilling participation. When Elena (Nina Dobrev) shares some hopeful news with Jeremy (Steven R. McQueen) about Bonnie (Kat Graham), she is caught off guard by his reaction. Liv (guest star Penelope Mitchell) helps Damon and Elena with their plan to get Bonnie back, but when things take an unexpected turn, she’s left with a difficult choice to make. Elsewhere, Matt (Zach Roerig) takes matters into his own hands when Enzo’s (Michael Malarkey) actions cross the line, and Kai’s (guest star Chris Wood) existence continues to be a dangerous threat. Paul Wesley and Michael Trevino also star. Kellie Cyrus directed the episode written by Brian Young & Holly Brix (#609). Original airdate 12/4/2014