The synopsis for the penultimate episode of Supernatural season 13.
 
SUPERNATURAL
“Exodus” — (8:00-9:00 p.m. ET) (Content Rating TBD) (HDTV)
HITCHING A RIDE – Sam (Jared Padalecki) and Dean (Jensen Ackles) devise a plan that will save innocent lives. Meanwhile, Jack (Alexander Calvert) continues to wrestle with the consequences of his decisions. Thomas J. Wright directed the episode written by Eugenie Ross-Leming & Brad Buckner (#1322). Original airdate 5/10/2018.

Source:

The CW

 
We are coming to the end of the season. Which innocent lives are Sam and Dean trying to save? What has Jack done that has such consequences? Give us your thoughts in the comments or the discussion thread for episode 22.