Watch more on the official site for The Vampire Diaries br br The Vampire Diaries 6x09 PromoPreview "I Alone" br The Vampire Diaries 6x09 Promo Webclip Sneak Peek Preview Trailer br The Vampire Diaries Season 6 Episode 9 "I Alone" (HD) br The Vampire Diaries Season 6 Episode 9 "I Alone" br The Vampire Diaries s06e09 Promo br The Vampire Diaries s06e09 Promo "I Alone" (HD) br br The gang is on a mission to bring Bonnie back. TVD returns with all new episodes Thursday, Dec.