Bobby is unconscious on the ground. Dean is awake, sitting against the metal table. Jamie is surrounded by a ring of fire, holding Mark close to her. "If there is anything of Castiel left in that meatsuit, you won't make it pass with barrier without it exploding. And even if you do…"

Black veins appear on the Leviathan's face. He looks at Jamie and then steps back. He looks over at Dean and approaches him and Bobby. "Bobby?" Dean asks. Bobby sits up. "How many of you ass-clowns are in there? A hundred? More?" Dean asks the Leviathan.

Jamie stares at him. "Definitely more."

The vessel is dripping black fluid. "Your vessel's gonna explode, ain't it? Wouldn't do anything too strenuous. In fact, I'd call it a day, head on home, huh?"

"We'll be back. For you."

He looks at Jamie, then to Dean, and Bobby. He then turns and walks slowly out of the room. Jamie holds her hand out to the fire. "Liberare me." The fire dies away. Jamie hurries over to Dean.

"Well, this is a new one." Bobby mutters.

Jamie shakes her head. "I am so sick of this."

Bobby looks at her. "Since when can you call down holy fire?"

"Oh is that what that was?" Dean asks.

Jamie points to Mark. "I gave birth to a half angel."

Bobby gives her a look. "Point taken."

Dean pulls himself up with Jamie's help. He looks down at Mark who is now asleep. He looks at Jamie and then past her. "Sam!"

Lucifer is holding Sam against a wall with a hand around his neck. "You're not real."

"Right. You think this fruit-bat fever dream is reality? You come back, I'm sorry, with no soul like some peppy American Psycho 'til Saint Dean glues you back together again by buying you some magic amnesia. You're real. I'm very real. Everything between is what we call set dressing."

"No."

"You're still in my cell. You're my bunkmate, buddy. You're my little bitch, in every sense of the term. Sam. Sam."

"Sam! You hearing me?" Dean puts a hand against Sam's chest. Jamie stands beside Dean.

"Sammy."

Sam gasps. Dean holds him. "Whoa. Look at me. Hey. All right, we got to button this up. Come on, let's get out of here. Come on."

Jamie nods. "This way guys."

The Leviathan walks into a water reservoir. As Dean, Sam, Jamie, and Bobby watch, he goes under. A whirlpool appears and black liquid radiates out from it, then disappears. "Cas…" Jamie whispers.

"Aw, hell." Bobby says.

"Damn it." Dean curses.

"You said it. Those... whatever you call 'ems..."

"Leviathans." Sam mutters.

"Right. If they're in the pipes, they got themselves a highway to anywhere."

Jamie sighs. "Son of a bitch. I guess we shouldn't be drinking the water." She looks down at Mark.

"Awesome." Dean picks up Castiel's trenchcoat, which had floated to the edge of the reservoir. "Okay. So he's gone."

"Yeah. Rest in peace. If that's in the cards."

Dean folds the trenchcoat and looks down at it sadly. A tear rolls down Jamie's cheek as she looks at the trenchcoat. "Dumb son of a bitch."

Bobby gestures to him. "Well, he was friends with us, wasn't he? Can't get much dumber than that. Come on, those things will be coming up for air soon."

Later at Bobby's Sam is asleep on a couch. Jamie walks past him carrying Mark. Dean is sitting at the table. He looks up. "Hey. You okay?"

"No. But what else is new?" They stare at each other. Dean gets up and walks over to her. He wraps his arms around her and Mark. Jamie starts sobbing. She grabs unto Dean and cries loudly into his shirt. Tears roll down Dean's face.

"Jamie…I…"

"He's gone, Dean. He's gone."

"I know."

Jamie pulls back. Dean is holding Mark between them. "I hate him. God, I hate him, Dean. He left us. He left both of us. And now this… Mark is going to grow up in this, and he is never going to know his father. He's gonna grow up like we did. He's never going to be safe."

Dean wraps his arms around Jamie and holds her tightly to him. "Mark has you. And he has me, and Jamie I promise you, I will protect you both. I will keep our boy safe."

"Our boy?"

"Yes."

Later…

"Hey. Wake up, sunshine. Up and at 'em, atom man." Lucifer yells at Sam.

"Sammy." Dean touches Sam on the chest. "Sammy, hey –" Sam jumps. "Whoa. That's twelve hours straight, I'm calling that rested. Here." He hands him a bottle of water and a power bar. "Hydrate, and uh, protein-ate."

Sam scoffs. "Breakfast in bed."

"Don't get used to it. Let me see that hand."

"Oh, he wants to hold your widdle hand. How sweet." Lucifer mutters.

Dean removes Sam's bandage and inspects his stitches. "Eh, you'll live. Here." He pours whiskey over Sam's wound. Sam sucks in his breath with pain. "All right, take it easy."

Jamie comes in with her backpack and Mark in a carrier. "So, ooze invasion. Any leads?" Sam asks.

Jamie shakes her head. "None so far."

Bobby walks in. "I got all my feelers out. Whatever they're up to, it ain't, ain't about going Mothra down Main Street. They'll turn up. You seem pretty eager to stretch your legs, you know." Bobby puts a new bandage on Sam's hand.

"Mmm." Sam shifts around.

Dean looks at his brother. "Now onto our other big problem. How're you doin'? And do not say okay."

"I'm not okay."

"You think?"

Jamie elbows him. "Dean. Down."

Dean looks at her. "There's nothing easy about it, Jamie, okay. We acted like he had everything under control."

Sam sighs. "I get it. I'm sorry. Look, I- I didn't exactly want to crack up, you know?"

"What the hell happened back there?" Dean asks, referring to Crowley's lab.

"Well, it's not just flashbacks any more."

"Well then what?"

Jamie sighs. "Oh Sammy." Jamie goes over and sits next to him.

Sam looks at her and then Dean. "It's more like... I'm seeing through the cracks."

Dean looks at him and then Jamie. "What does that mean?"

"It means I'm having a difficult time figuring out what's real."

Dean nods wide eyed. "Hallucinations."

"For starters."

"Can I?" Jamie gestures to Sam. He nods. Jamie puts her hands on either side of Sam's head. She closes her eyes.

Dean looks at her "Jamie?"

"Oh boy." Jamie opens her eyes. She sees Lucifer sitting next to Sam. "Mmm."

Dean looks at Sam. "Well for starters, if you're tripping Hell's Bells, why would you hide that?"

"I wasn't hiding it, Dean, I- I was just not talking about it. I mean it seemed like you three had enough going on as it was. Look, I- I just figured, try to hold onto the safety bar and ride it out, you know? But it's getting more specific."

"As in specifically what?" Dean asks.

Sam looks at Jamie. "Lucifer." Jamie says.

Dean gets glasses of whiskey for himself and Bobby. "What the hell, Sam?" Sam has just explained everything Lucifer told him.

"I told you."

Dean sits down. "I mean seriously, how do you, how do you argue with that?"

"I know. It's a problem."

"Well now wait, I got it. Why would the Devil holodeck you a whole new life when he could just kick your ass all over the Cage?"

Jamie glances at Sam. "My god.

Sam sighs. "'Cause, as he puts it..."

"You can't torture someone who has nothing left for you to take away." Sam, Jamie, and Lucifer all say at the same time.

"Very good, Sam. Oh and congratulate your sister for me on the little brat." Jamie looks over in Lucifer's direction. Sam sees her look and looks at her.

Dean shakes his head. "Okay, fine. But this Malibu dream mansion that he, he, he makes for you to take away is this post-apocalyptic mess?"

"It had to be a mess, Sam, or you wouldn't believe it was your life."

Dean stops and looks at Sam. "Wait. Are you seeing him right now? Is he seeing him right now?" He looks at Jamie. The twins nod. "You know that he's not real. Right?"

Sam looks up. "He says the same thing about you."

Bobby gets up. "I'm going back to work."

Sam is taking apart his gun. Bobby is using the computer in the kitchen. Dean is leaning over Bobby's chair. Jamie comes in carrying bags, and Mark. "Do I have to go?"

Dean doesn't look up. "Is that a question or are you just being bitchy?"

Jamie sighs. "Dean…with Sam…you need me."

Dean looks up. "I can manage without you. Right now you need to get out of here." He hands her a stack of documentation. "Here, take this with you."

Jamie takes it. "I have fake ID, Dean."

"But Mark doesn't."

Jamie looks through the documentation. "Angela Jefferson Williams, huh?"

"And her son, Caleb." Jamie sighs. Dean grabs her arm. "I promised I would protect our boy. That's exactly what I'm going to do. Everything is packed into Bobby's old cars, everything is arranged." He hands her a set of keys.

Jamie nods. Sam walks in. "What's going on? You leaving already, Jamie?"

She turns to him. "Dean is sending me and Mark up to AJ's mom in Vermont."

"Vermont? That's pretty far away, Dean."

"That's kind of the point. Jefferson had a safehouse in the mountains up there. I'm getting her and the baby off the radar as fast as possible."

Jamie scoffs. "Yeah, good luck with that."

Dean turns to her, looking annoyed. "Why are you so against this? You come and go as you please anyway, why is this different?"

She stares at him. "Maybe because for six years I lived with AJ, for three years I've had Cas by my side, for the last nine months I've been living with Bobby. I haven't come and gone as I pleased since I was 18. I've only come and gone from you!"

Sam looks away. Bobby looks down. Dean swallows and looks at her. "I'm sorry."

She nods. "I'm sorry too. I didn't mean it like that."

"Let's not argue about this anymore. Please."

"Okay."

Dean hugs her. Sam walks over and hugs her. Jamie looks at Bobby. They share a smile. Dean and Sam bend down beside the baby carrier. "See ya little guy." Dean says.

"Stay tough, k? Your mommy is strong and I know she'll take good care of you." Jamie smiles at Sam.

She takes something out her pocket and hands it to Dean. "Here. Thought you might want to…" Dean looks down and sees it's his amulet. He smirks and then hangs it around Mark's neck. He kisses him. Jamie picks the carrier and looks back at her brothers. She goes out the door.

Much later…Dean enters the building where Sam is standing with his hallucination of Dean. He has his gun drawn. "Oh look. Another me."

"Sam, what are you doing?" Dean asks. Sam points his gun at him. Dean holds up his hands. "Whoa, whoa!"

"I was with you, Dean!" He yells.

Dean nods. "Okay. Well, here I am."

"No. No, I don't, I..." He looks at Lucifer, then back at Dean. "I can't know that for sure. You understand me?"

"Sam?"

"Jamie?" He glances over his shoulder and turns around.

Dean whirls around. "Jamie? Where?"

"I hear her voice." He closes his eyes. When he opens them Jamie is standing beside Dean.

Jamie smiles. "This is a…an astral projection, Sam. I'm telling you up front I'm not real. So if you're going to shoot, shoot at me." She gestures to herself.

"Sam? Is Jamie here?" Dean asks.

Sam looks at him. He gestures with his gun. "She says she's an astral projection."

Dean sighs. "Okay, now we're gonna have to start small."

"I don't remember driving here." He tells Dean.

"Well that's because I drove. You thought." Sam sees Lucifer glance at Dean. "Sam is very suggestible."

Jamie turns around. "Shut up Lucifer! Yeah, that's right. I can see you, bastard." Lucifer looks surprised. Sam shoots at nothing where he thinks Lucifer is.

"Whoa, whoa! Sam! This discussion does not require a weapons discharge!" Dean yells. Sam is breathing heavily. He lowers his weapon. "Look at me. Come on. You don't know what's real? Look man, I've been to Hell. Okay, I know a thing or two about torture. Enough to know that it feels different. Than the pain of this, this regular, stupid, crappy this."

Sam shakes his head. "No, no, how can you know that for sure?" He looks at his brother.

Jamie presses her lips together and stares at her twin. "Listen to Dean, Sam. Trust him. Trust our brother."

Dean gestures for Sam's hand. "Let me see your hand." Dean reaches out his hand. Sam lifts his right hand. "No, no. The, the gimp hand! Let me see it."

"Smell you, Florence Nightingale." Sam looks around at Lucifer. Jamie holds her hands up and squeezes her eyes shut. Lucifer stumbles back a few steps. "Whoa-ho!" Dean grabs Sam's bandaged left hand.

"Hey." Dean shakes Sam's hand. "This is real. Not a year ago, not in Hell, now. I was with you when you cut it, I sewed it up! Look!" He squeezes his bandaged left hand and grabs the barrel of the gun Sam is holding with his other hand. Lucifer appears next to Dean and flickers.

"We've done a lot more with pain."

"Don't listen to him. Listen to Dean."

Sam takes an indrawn breath and winces. "This is different. Right? Then the crap that's tearing at your walnut? I'm different. Right?"

Sam takes his hands away. Dean keeps Sam's gun. "Yeah, I think so."

"You sure about that, bunk buddy?"

Jamie whirls around. "That's it!" She holds her hand out. "In nomine dei…"

Sam is looking at Lucifer and Jamie. Dean tries to get his attention. "Sam? Sam."

Sam pushes his right thumb against his wound, which bleeds through the bandage. Lucifer flickers again. "Doesn't mean anything."

"Yes it does, Sam. It means everything."

"Hey. I am your flesh-and-blood brother, okay? I'm the only one who can legitimately kick your ass in real time. You got away. We got you out, Sammy."

"Sammy. Sammy." Sam continues to push his thumb hard against his wound. "Sammy, I'm the only one who can..." Lucifer flickers and disappears.

Sam looks at Jamie. She nods and smiles. "You did it, Sammy." She also disappears.

"Believe in that! Believe me, okay? You gotta believe me. You gotta make it stone number one and build on it. You understand?"

Sam nods. "Yeah. Yeah, okay." Sam nods again. His phone rings. "Bobby, hey."

"The Sheriff was right. The hospital thing's definitely our kind of thing. I double-barrelled one of them in the morgue. Silver buckshot - no effect. Bled black ooze."

"Leviathan here?"

"I'm falling back. I'll meet you at the house. We can regroup."

Sam hangs up. "Bobby's got a live one."

"Okay, well let's go."

Sam nods. They head to the Imapala.

Dean turns him as he drives. "Look, when we get back to Bobby's –"

Sam looks at him. "It's okay, Dean, I'm good. No white rabbits." He laughs briefly. "I'm not seeing anything."

Dean nods. "Okay. Baby steps." He gives Sam a small smile and Sam gives him one in return. Sam's phone rings.

He looks at it. "It's Jamie." He answers it and puts it on speaker. "Hey Jamie, you in Vermont?"

"Apple pie, milk and flowery pillows. I'm gonna die if I don't hunt something soon." Sam and Dean laugh. "How are you, Sam?"

"I figured out how to make Lucifer disappear. Thanks to Dean."

"Knew he was good for something." She snickers.

"Hey!"

"So I uh saw you, back there."

"Cool trick huh?"

"When did you learn that?"

Jamie's quiet. Dean looks over. "Jamie?"

"Oh no."

Sam looks at the phone. "What? What's wrong?"

"Look ahead of you."

They pull up to Bobby's. Dean sees what she's talking about. "Oh no." The house is mostly burned. Sam and Dean get out of the car and stand looking at the house. "Oh no." Dean says again.

Sam lifts his phone to his ear. "Jamie, can we call you back?"

"Be careful." She hangs up.