Everything we know about Supernatural season 15 episode 17.
The Press Release
 

UNITY

ONE WAY OR ANOTHER – Dean (Jensen Ackles) hits the road with Jack (Alexander Calvert) who needs to complete a final ritual in the quest to beat Chuck (guest star Rob Benedict). A difference of opinion leaves Sam (Jared Padalecki) and Castiel (Misha Collins) behind looking for answers to questions of their own. Catriona McKenzie directed the episode written by Meredith Glynn (#1517). Original airdate 10/29/2020.

Source:

CW

 

 The original trailer
 
 
 
 The promotional pictures
 
 
 
What is the final ritual to stop God? What difference of opinion do Cas and Sam have? What answers will they find?  Adam, that Adam, the first dude is brought into the lineup to help kill God. Will he ask or care about Cain? Or is he just one horny guy? Give us your thoughts in the comments or in the discussion thread for episode 17.