introducing the new reaper. billie the name's

Dean arrived at Jenna grandmother's after Jenna called him when Amara levitate the tub of baby stuff to the floor and the block to the wall. Let's not forget, that she have the mark of cain.
To his(Dean) surprise's and ha, there is an exorcist in grandma's living room. It’s Crowley in a clerical collar! “Hello, my son,” Crowley purrs, explaining that he’s known Dean since he was a scrumptious young altar boy.

“Really, Father Crowley?” Dean growls when they’re alone.
“I’m sorry, Agent Pathetic-Has-Been-Rock-Star, did I offend your delicate sensibilities?” Crowley scoffs, explaining that he’s working the case of the mystery baby, just like Dean, thanks to a network of priests and nuns who tip him off to possessions. But when Dean approaches Amara, she stops crying. Dean flashes back to the Darkness woman in the premiere telling him that they’re bound and will always help each other. He doesn’t look happy about this.
Somehow, Amara the Darkness is feeding of human souls, when she feed on Jenna. She slit her grandmother's throat, and when on rampage only to be killed by Crowley.
Okay, okay. Enough on Dean. Back to Sam. He’s still at ground zero for the Darkness zombies and determined to find a cure because he’s secretly contracted a nasty case of the black neck veins. That's when the new reaper is being introduced. she’s there to deliver Sam a message: He and Dean are done dying and coming back again and again. The old Death thought it was funny, but the Winchesters killed him. So now there’s a new rule: What lives, dies. And an addendum to that rule is that when the Winchesters die, they don’t go to Heaven or Hell or even Purgatory. No, she says, they get tossed into the Empty.
“And nothing comes back from that,” she promises. And she told Sam that he is unclean from biblical sense.
Hearing this news, Sam heads to the hospital chapel and does something he hasn’t done in ages: He prays. He’s okay dying, but Dean deserves a real life.
In the dire situation, he remembered the word utter by Billie the reaper. "Biblical sense". Et-voila. Googled it. The "unclean" can be purify by the fire of holy oil. Which somewhat, cleanse him for the zombie-like.

Movw on to Castiel. He is real pity. Between the rabid-curse and the two jerky angel that tortured him. He deserve a better plot. Then, little angel, Hannah barged in and save him from them. Only Cas then realized that Hannah is working together with them.But the jerks pop back up, and the ensuing fight ends with Cas standing over three bodies, more broken than before.
Bck to Iowa: Dean stabs Crowley to the wall, then kicks open the baby’s door. Amara’s gone, though. And oops, now is Crowley.
And the episode end with sweet little Amara, now maybe 8 years old and barefoot in a dress with a truly enormous bow on her behind. Crowley pulls up in a windowless van. It’s fitting.
“Want some candy, little girl?” he asks her, indicating the bound family of four he has in the back. Amara smiles the smile of a hungry little girl.