Watch The Vampire Diaries: Black Hole Sun from Season 6 at pethydro.org There is a LOT going on in The Vampire Diaries season 6, episode 4, "Black Hole Sun," so make sure to check out our review for the highlights!. Watch The Vampire Diaries season 6 episode 4 online. The complete guide by MSN. Click here and start watching the full episode in seconds. Last week's episode of 'The Vampire Diaries' primed and readied us to find out how Damon and Bonnie are going to make it back to present. Season six of The Vampire Diaries continues to thrill with its refreshed, revived feel. Here's Caroline's review. List of The Vampire Diaries episodes on IMDb · Afterbuzz's discussion about " Black Hole Sun" on YouTube. Even in season 6, The Vampire Diaries still has its twists: Was anyone dying to see Ivy again? No, but No, but surprise: Enzo fed her his blood, so she's a hungry vampire. Kai is a . Where in the hell is she this episode?. Black Hole Sun is the fourth episode of the sixth season of The Vampire Diaries Season 6, Episode 4 () The Vampire Diaries - Black Hole Sun Trailer. Season 6 | Episode 4 Paul Wesley and Nina Dobrev in The Vampire Diaries ( ) Nina Dobrev in The Vampire Episode cast overview, first billed only.