Written by Adam Glass.
Directed by Jeannot Szwarc.
Air Date: October 28, 2014.
A murder outside a biker bar in Durham, Washington, in southwest King County, bears all the hallmarks of a werewolf attack. The Winchesters learn that Kate from "Bitten" (S08, E04) is staying in town, but the job becomes more complicated when they begin to suspect she's covering for someone else.
For this episode: 2 humans and 3 werewolves.
For the series so far = At least 1110 angels, 1055 humans (of which 8 were witches), 172 demons, 58 vampires, 49 ghosts, 36 Jefferson Starships, 21 gods, 19 zombies, 12 werewolves, 10 hellhounds, 7 skinwalkers, 6 changelings, 6 shapeshifters, 5 djinn, 5 reapers, 4 dogs, 4 ghouls, 4 Leviathan, 2 Amazons, 2 arachnes, 2 kitsunes, 2 rugarus, 2 Thule, 2 vetalas, 1 cat, 1 crocotta, 1 deer, 1 dragon, 1 fairy, 1 familiar, 1 Khan worm, 1 lamia, the Mother of All, 1 okami, 1 phoenix, 1 pishtaco, 1 Purgatory creature, 1 rakshasa, 1 rawhead, 1 shojo, 1 shtriga, 1 siren, 1 Titan, 1 wendigo, 1 whore of Babylon, 1 wicked witch, and 1 wraith.
- Above Good and Evil: Tasha—who, unlike Kate, doesn't hesitate to kill humans—thinks like this now. She sees her pre-werewolf state as weak and pathetic.
- The Bus Came Back: Kate returns.
- Murderer P.O.V./P.O.V. Cam: Aside from a brief close-up of the killer's lips, the entire teaser is shot from her vantage point. This is, of course, to establish doubt as to who's the killer.
- Superhuman Transfusion: Kate turned Tasha into a werewolf in order to save her life after what would have otherwise been a fatal car accident.
- Vegetarian Vampire: Kate has been living as the werewolf equivalent of this. Her sister very definitely hasn't.