A search for the one thing that may give the Winchesters an edge against God leads Sam and Dean to Jo’s door and to a secret that may have died with Ruby. Meanwhile, Castiel asks Jack to do the unthinkable to help the brothers in their quest.
Sam and Dean respond to a frantic call and together along with Castiel, Jack and Jody, assist in an extraordinary and heartbreaking rescue. Billie surprises everyone with a visit to the bunker.
Supernatural Season 15 Episode 12