Question: We All Go a Little Mad Sometimes was an episode from which American supernatural drama?

Context paragraphs:
We All Go a Little Mad Sometimes: "We All Go a Little Mad Sometimes" is the sixth episode of "The Vampire Diaries's" fourth season, premiering November 15, 2012 on The CW.

List of Supernatural episodes: "Supernatural" is an American supernatural drama television series, created by Eric Kripke, that follows brothers Sam (Jared Padalecki) and Dean Winchester (Jensen Ackles) as they travel throughout the United States hunting supernatural creatures.  The series borrows heavily from folklore and urban legends, and explores Pagan mythology and Christian theology, and their main adversaries throughout the series are demons.

The Vampire Diaries (season 6): "The Vampire Diaries", a one-hour American supernatural drama, was renewed for a sixth season by The CW on February 13, 2014, and it premiered on October 2, 2014.  A majority of the episode titles for this season are named after songs released in 1994 & 1903.  "The Vampire Diaries" was renewed for a seventh season on January 11, 2015, by The CW.

Teen Wolf (season 5): The fifth season of "Teen Wolf", an American supernatural drama created by Jeff Davis and to some extent based on the 1985 film of the same name, received an order of 20 episodes on June 24, 2014, and premiered on June 29, 2015.  The second episode aired the day after, on June 30, 2015, then returned to the regular schedule on Mondays.

Where the Wild Things Were: "Where the Wild Things Were" is the 11th episode of season 6 of the supernatural drama television series "Grimm" and the 121st episode overall, which premiered on March 17, 2017, on the cable network NBC.  The episode was written by Brenna Kouf and was directed by Terrence O'Hara.  In the episode, Nick and Eve go inside the mirror to find the other place to be a resemblance to the Black Forest with some slight differences.  Meanwhile, the group contacts Renard for help in discovering more about the symbols, discovering the prophecy behind it.  The episode is the first of a two-parter with the next episode as the second part.

Star-Crossed (Grimm): "Star-Crossed" is the 9th episode of season 5 of the supernatural drama television series "Grimm" and the 97th episode overall, which premiered on February 12, 2016, on the cable network NBC.  The episode was written by Sean Calder and was directed by Carlos Avila.  In the episode, Nick and Hank go after a Wesen serial killer who kills its victims through a barbarian crucifixion.  They decide to use Monroe to go undercover and find the killer.

Zerstörer Shrugged: "Zerstörer Shrugged" is the 12th episode of season 6 of the supernatural drama television series "Grimm" and the 122nd episode overall, which premiered on March 24, 2017, on the cable network NBC.  The episode was written by Brenna Kouf from a story by the series co-creators David Greenwalt and Jim Kouf and was directed by Aaron Lipstadt.  In the episode, Nick and Eve struggle to fight against Zerstörer, who is also wanting to leave the other place and go to the real world to retrieve Diana for his own purposes.  For her own protection, Adalind and Renard take her to the house where Nick had his first Grimm case but there are consequences along the way.  The episode is the conclusion of a two-parter with the previous episode as the first part.

The Vampire Diaries (season 4): "The Vampire Diaries", a one-hour American supernatural drama, was renewed for a fourth season by the U.S. channel The CW on May 3, 2012, seven days before the third season's finale.  Unlike the previous seasons that aired in September, it premiered on October 11, 2012, to avoid competition from major television shows.  Season 4 consisted of 23 episodes instead of the usual 22 episodes.

The Vampire Diaries (season 2): The Vampire Diaries, a 40 minute American supernatural drama, was officially renewed by The CW for a full 22-episode season on February 16, 2010.  The first episode premiered on September 9, 2010, at 8 p.m. ET.  The season picks up immediately after the events of the season one finale.  All the series regulars returned.  Season two focuses on the return of Elena Gilbert's (Nina Dobrev) doppelgänger, Katherine Pierce, the introduction of werewolves, the sun and moon curse, and the arrival of the original vampires.  Tyler Lockwood's (Michael Trevino) uncle, Mason Lockwood (Taylor Kinney), arrives in town searching for the moonstone, a family heirloom.  Tyler later learns of his family's werewolf curse.  Meanwhile, Caroline Forbes (Candice Accola) is killed by Katherine while having Damon Salvatore's (Ian Somerhalder) blood in her system, turning her into a vampire.  The arrival of the original vampires, Elijah (Daniel Gillies) and Klaus Mikaelson (Joseph Morgan), also bring about complications.  Klaus is a vampire-werewolf hybrid, but his werewolf side had been forced into dormancy by witches, as nature would not stand for such an imbalance in power.  Therefore, Klaus arrives in town with plans to break the curse and unleash his werewolf side by channelling the power of the full moon into the moonstone, sacrificing a vampire and a werewolf, and drinking the blood of the doppelgänger.  The season is currently on air in Urdu on filmax channel in Pakistan.  It became available on DVD and Blu-ray on August 30, 2011.

List of Hemlock Grove episodes: "Hemlock Grove" is an American supernatural drama series developed by Brian McGreevy and Lee Shipman, based on McGreevy's novel of the same name.  The first season premiered exclusively via Netflix's web streaming service on April 19, 2013.  The second season premiered on July 11, 2014.  The third and final 10-episode season premiered on October 23, 2015.

Supporting paragraphs: We All Go a Little Mad Sometimes The Vampire Diaries (season 4)
Answer: The Vampire Diaries