But Deans not feeling it.
Instead, he wants Sam to face the fact that Lucifer has no doubt ripped out Marys heart.
Theyre hitting the road.

Credit: Jack Rowand/The CW
And yes, Jack is coming.
#HitTheRoadJack
Except Jack doesnt want to go.
If Jack can get his powers back, maybe he can help them save her.
But if he cant, Sam tells him thats okay too.
Even though he cant fully grasp when lying is okay (like on a fake I.D.).
But at least he knows how to dig up a grave!
And thats where they find a body, which means its not a revenant.
But if its a ghost, it wouldve shown up on an EMF.
So, while they venture to figure that out, a second victim is killed by her dead son.
Thats two ghosts in two days with zero EMF.
This time, theyre posing as brothers whove just lost their mom.
(I use the term posing loosely.)
And thats when Sam loses his cool: At least Dean had a relationship with Mary.
He was the one she always called.
You had something with her I never had, Sam tells Dean.
And now Im just supposed to accept that I never will have it?!
And there you have it.
Sam isnt being the optimist because he can be; hes being the optimist because he has to be.
The alternative is just too sad.
She shifts into the dead loved ones of her patients to give them one final chance to say goodbye.
But she doesnt kill them.
So who (or what) does?
Mia remembers an ex-boyfriend of hers named Buddy.
Not only was he a shifter, but he liked hurting people.
(Next: Castiel meets…Castiel?)
He explains his mom situation and asks to see her one final time, so Mia shifts into Kelly.
After hugging his mom, Jack tells her that hes afraid.
Even monsters can do good in this world, she says.
And with that, Jack gets what he needed.
As for Dean, hes currently knocked out…because Buddy showed up and just shifted into Dean!
He then knocks Jack out and proceeds to PEEL HIS BEAUTIFUL DEAN FACE OFF.
Im not going to lie, I love thatSupernaturalfinally showed a shift like this, but it was GROSS.
Awesome, but gross.
Except Jack is there to throw Buddy back and use his powers to reroute the bullet to miss Sam.
Turns out, the kid is pretty useful.
Dean admits that Sam could be right about the kid, because if nothing else, he tries.
But somethings up with Sam.
But Dean shuts down that conversation immediately.
I need you to keep the faith, Dean tells his brother.
For both of us…because right now I dont believe in a damn thing.
UGH, rip my heart out, why dont you?!
Well, its a creature that appears in the form of Castiel so as not to freak him out.
As this new guy explains where Castiel is, he asks Cas what came before even God and Amara.
Nothing, Cas says, and hes exactly right.
Nothing but empty, Faux Cas says, and that where he is now.
Its where all angels and demons come when they die for one final, endless, peaceful sleep.
(The Big Sleep, if you will.)
But Castiels not sleeping, and its because hes awake that Faux Cas is awake.
As he puts it, Fun fact: In all of forever, nothing ever wakes up here.
So why is Cas awake?
Release me, he pleads.
And I guess it works?
Im not sure where he is, but it certainly isnt empty.