The episode was written by Brett Matthews and Elisabeth R. Finch and directed by Michael Allowitz.
Stefan still cannot remember, so Elena takes him to the bridge where he saved Matt's (Zach Roerig) life and she became a vampire.
Matt experiences episodes of losing time, so he sets up cameras all over the house to discover what is happening.
Matt later discovers in one of the videos that he has a passenger inside of him who warns him that his friends will come looking for the knife and he has to protect it otherwise they will kill him.
Stefan is at the Remembrance Day celebration at the cemetery where Caroline (Candice Accola) finds him.
Elena, Damon, Caroline, Matt and Jeremy make a private ceremony for Bonnie in the forest to say their goodbyes.
While this is happening, Tyler (Michael Trevino) appears and Caroline runs towards him laughing through her tears.
Leigh Raines of TV Fanatic rated the episode with 4/5 stating that "More than halfway through "For Whom the Bell Tolls" I was moderately bored by this week's The Vampire Diaries.
I wish there would have been more development in the Silas story line, but gave Bonnie a true memorial that the character truly deserved, even though she'll still be on the show.
"[6] Stephanie Hall of KSiteTV also gave a good review to the episode saying that it didn't fail to entertain.