“Unhuman Nature” is the title of the November 29 episode of Supernatural and The CW has released an official description to promote it.
Here’s the write-up with some spoilers:
CARPE DIEM – Sam (Jared Padalecki) and Castiel (Misha Collins) track down a Shaman (guest star Dimitri Vantis), who may be able to help a friend. Nick (Mark Pellegrino) continues to spiral down a dark path as he looks for answers surrounding the deaths of his wife and son. Jack (Alexander Calvert) turns to Dean (Jensen Ackles) for help enjoying the human experience. John Showalter directed the episode written by Eugenie Ross-Leming & Brad Buckner (#1407). Original airdate 11/29/2018.