Sharp Teeth

• What will happen to make Sam trust Dean again, to repair their relationship?

• What does the "Mark of Cain" mean for Dean?

• Has Crowley found the "first blade" yet?

• Will Dean ever forgive himself for Kevin's death?

• Can Cas find Metatron?

• How will they discover Gadreel's location?

• What is happening with the other angels?

• Sam tells Dean they aren't brothers, not now
• Garth was bitten by a werewolf during a hunt. He is now married to a werewolf and has been accepted into her pack. They survive on animal hearts and don't hunt or harm humans
• While at dinner, it became evident that Garth and his family don’t just live on animal hearts. There were other organs and cuts of raw meat on their dinner plates. Farmer Brown also told Sam that his mutilated farm animals had their “organs” removed – not just their hearts
• Bess and her stepmother were born as werewolves. They refer to people who got turned after a bite as “bittens”. Some members of Bess’ family look down on “bittens” and prefer to be called “lycanthropes” and not werewolves

• Garth got bitten by a werewolf in Portland, Maine and ended up in Wisconsin with Bess and her pack
• When Garth was describing how he prepared to kill himself, we learned that his favorite dish is egg foo young, and his favorite movie is Rocky III
• Tom Butler, who played Reverend Jim in this episode also played a resident of a small town that sacrificed people to a god in Scarecrow(Season 1)

• Sam describes Garth as an "Ichabod Crane-looking guy", referring to the protagonist in Washington Irving's 1820 novel.The Legend of Sleepy Hollow
• When Dean mentioned the Mark of Cain, Sam initially thought Dean was talking about the wrestler. Kane (Glenn Thomas Jacobs) is a professional wrestler with the WWE
• When Sam described how Gadreel left some grace in his vessel, but Castiel "took care of it", Dean joked that Sam's experience sounded like an episode of "Teen Mom". Teen Mom is an MTV network reality show about pregnant teenagegirls
• Dean: "No, you just go all Wolverine on cattle."
  This refers to the Marvel Comics character who appeared in The Incredible Hulk #180 (October 1974). Wolverine, aka Logan, is one of the X-Men, a mutant possessing the power of enhanced regeneration, allowing him to heal wounds at an accelerated rate
• Dean tells Garth that he "drank the Kool-Aid", meaning he accepted the story his father-in-law (and spiritual leader) was telling him. This is a reference to the cult leader Reverend Jim Jones, who instructed his followers (members of the People's Temple) to drink Kool-Aid poisoned with cyanide, resulting in a mass suicide in Jonestown, Guyana in 1978
• Sam's fed alias was Agent Perry. This could refer to Steve Perry -- the former lead singer for the band Journey, or Joe Perry -- lead guitarist with the band Aerosmith
• Sam: "Truth be told, I'm more interested in, uh, murders and X-Filey stuff."
  This refers to the cult hit TV show, "The X-Files". The show revolved primarily around two FBI agents, Dana Scully and Fox Mulder, who investigated the paranormal and the unexplained
• Dean: "Sheriff Andy Taylor here wasn't good enough for you."
  This refers to the main character played by Andy Griffith on The Andy Griffith Show from 1960-1968. Andy Taylor is a good-hearted sheriff who looks after the town of Mayberry.
• According to Norse mythology, Ragnarok is an end-of-days prophecy that describes how some powerful Norse gods, including Loki, Thor, and Odin, will meet their end. Fenris is a fictional wolf character featured in the Marvel comic book series "Fenris Wolf". The character is loosely based on the Norse god "Fenrir". The maw of Fenris is fictional

• "Bringing In the Sheaves" by Knowles Shaw (played by Garth and his pack as Dean arrives at the Reverend's house)

See below for the discussion thread for this episode.

EPISODE 913: THE PURGE