The synopsis for the Supernatural season 13 finale
 
SUPERNATURAL
“Let the Good Times Roll” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)


IT ALL COMES DOWN TO THIS – Our heroes, Sam (Jared Padalecki) and Dean (Jensen Ackles) Winchester, continue to be tested in the battle between good and evil, but one impulsive decision could alter the lives of one the brothers forever. Robert Singer directed the episode written by Andrew Dabb (#1323). Original airdate 5/17/2018.

Source:

The CW

 
What do you think? Who makes the impulsive decision? What tests will Sam and Dean face? Give us your thoughts in the comments or in the discussion thread for episode 23.