[Unhuman Nature]

BUNKER

"What's taking so long?" Dean wondered as Holly paced nervously.

"I don't know. Whatever's going on with Jack is probably complicated." Sam replied.

"Yeah, but, I mean, weird stuff happens to kids all the time. They get coughs, bloody noses. Is he okay?"

"I -- I did what I could, but I don't, I -- I don't know what's wrong with him." Cas said.

"But you can figure it out, right?" Nate asked, wrapping his arms around Holly.

Jack started having a seizure.

"Jack? Jack? Hey. Jack!" Sam called.

EMERGENCY ROOM

"I need a doctor!" Dean yelled. "Hey. Look, could you just get him inside?"

"Sir, I just need some basic information. That's the procedure. I do the work-up, then I take him back." The hospital worker said.

"Okay, the basic information is he's sick."

"Do you see anyone here who isn't? His full name, please. You do know his name, right?"

Holly glared. "Jack."

"Uh, uh, Kline." Sam added. "Jack Kline."

"K-l-i-n-e." Cas spelled.

"Date of birth?" The hospital worker asked.

"Come on. Is that important?" Dean asked.

"What did you say your relationship is to the patient?"

"May 18th. May 18th. Date of birth -- May 18th." Sam replied.

"2000 -- '99. 2000." Dean added.

"Uh-huh. Family medical history? Let's start with the father." The hospital worker questioned.

"He's dead."

"Cause of death?"

"He was stabbed through the heart, and he exploded." Cas informed.

"Okay, you know what? We don't have time for this. All right, he's sick. His name is Jack Kline. His father exploded. There, you've got all the basics. Now what does he need to do to see a doctor?" Dean asked.

Jack collapsed.

"Jack!" Cas cried.

Jack was rushed through the hospital on a gurney.

"Jack?!" Sam, Dean, Holly, and Nate called together. "It's all right, Jack. Hang in there, buddy. Jack, hey, we're right here, buddy."

"He's in good hands. Don't worry." The doctor said.

"So, there's -- there's been... Uh, he's been coughing. There's been blood." Nate informed.

"Okay, gentlemen, ma'am, can you at least wait outside, please?" The nurse asked.

"It's been going on for a while." Sam said.

"What's happened? Is he gonna be okay?" Dean asked.

"The doctor will handle it." The nurse told them.

"Jack, we're right here!"

The nurse turned to Holly. "We should check to see how your baby is doing."

Nate gave a nod. "Yeah, good idea. We'll tell you if we hear anything, okay, babe?"

Holly nodded and kissed him, following the nurse.

BAR

"Nick? Hello. Diane Fargo." Diane introduced.

"Hey, yeah. Yeah, you weren't easy to track down." Nick replied.

"I left Pike Creek six years ago. I'm working at the here in Wilmington."

"Oh. What can I get you?"

"Coffee, please."

"Well, thanks for seeing me. I didn't think you were gonna remember who I am."

"Of course I do. I spoke to you the morning after your family was..."

"Slaughtered."

"And then you left town."

"Yeah, just... I couldn't stay, you know? Too much baggage. I had to rebuild."

"Thank you."

"You're welcome." The waitress said.

"My ex-neighbor, Arty Nielsen, was killed a few weeks ago." Nick informed.

"Really?" Diane asked.

"Yeah, so... just brought back all kinds of bad memories, you know, and, uh, I was just looking for some answers."

"To...?"

"My family."

"The case was never solved."

"The one witness was Arty, and he said that he saw someone leaving my house the night of the murders, and then he changed his story."

"It happens. People say things in the heat of the moment, and then realize they're not so sure. Nick; even you gave up on the story."

"There was almost no evidence at the crime scene."

"Mm-hmm."

"The cops had zero to say to me. I even played with the idea you did it, but you..."

"Well, I was getting hammered at the Elks Lodge that night."

"So... I moved on."

"Yeah, well, I can't."

"Nick?"

"No, I'm good."

"Seriously."

"As -- As soon as I figure out what happened that night, these demons will disappear. Look, you were a crime reporter, right? So you've got to know all the beat cops in Pike Creek."

"Sure."

"Okay, do you happen to remember who was assigned, to my neighborhood that night?"

"I think so."

"All right."

"I'm... pretty sure, it was Frank --Frank Kellogg."

"Frank Kellogg."

"Last I heard, he was doing private security up in Montauk."

"Frank Kellogg, Montauk."

HOSPITAL

"This is crazy. When Jack became human, I was worried, you know, given what we do, that -- that something would happen to him, but I thought it'd be a vampire or a ghoul, not a friggin' cough. He's just a kid--" Dean was cut off.

"Hey, hey, hey. Cas. Doctor. So, um... What do we know?" Sam asked.

"Well, I can tell you what we don't know." The doctor replied.

"I don't like the sound of that." Dean said.

"Jack's test results all came back negative."

"That's great, right?" Sam and Nate questioned.

"Well, Jack -- he's very ill. We're just not sure what we're up against."

"You just said his tests came back negative." Dean said.

"Well, those tests, but we have to run more tests."

"More tests?" Sam repeated.

"Yes, until we can figure out what's happening to him."

"What is happening to him right now?" Dean wondered.

"Jack... Jack's in total systemic failure. His body's in the process of shutting down."

The doctor stepped away and Nate followed the doctor. "Hey, doc, how's my baby?"

"Your baby is good. Healthy. Developing well."

Nate smiled, wishing time could pass faster so he could meet his kid.

Dean turned to Sam as Nate returned. "Lemme ask you two a question. How much longer are we gonna give this? How many more tests are there gonna be?"

"My opinion? I think we're done here." Sam said.

Nate nodded. "Yeah. Agreed."

"Yeah, that was kinda my opinion, too." Dean replied. "Baby?"

"Baby's good."

Sam continued. "Good. I mean, this place, we tried, but they've never seen anything like Jack, and we can't exactly tell them what he is."

"Then let's get him out of here. Let's bring him home. Let's do what we do. Let's find a way. Hell, I was even thinkin' maybe Rowena..." Dean suggested.

"Already called her." Sam interrupted.

The doctor returned.

"Uh, what -- What's going on?" The doctor asked.

"What's it look like? You can't expect him to hit the street with nothing on but a hospital gown, his ass hanging out." Dean replied.

"He's not going anywhere."

"We're just getting a second opinion." Sam reasoned.

"Jack?"

"We're getting a second opinion." Jack repeated.

"If he leaves the hospital, we are no longer responsible for him. You and he have to acknowledge that you're leaving against medical advice."

"Fine. We're leaving."

"Yeah, there's just no talkin' to him when he gets like this." Dean said.

Nate gave a small smile. "Kids."

Holly frowned. "What's that supposed to mean?"

BUNKER

"Thanks for coming." Sam said.

"I got here quick as I could. How is he?" Rowena asked.

"Well, uh..."

"I brought the Book of the Damned."

"Which you stole." Nate reminded her.

"Which I borrowed amidst the ruckus of all those folks arriving from the other world, but we can talk about that later. Just how sick are Dean and Holly?"

"Yeah, about that, um..." Sam trailed.

"What? Is this a trick? Samuel, Nathaniel, I thought we were beyond this."

"Somebody is sick, all right, but... Listen, I-I don't know how well you got to know our -- our -- our friend Jack with everything that was going on when you were here, but we've sort of been taking care of him, and, uh, he's, um... Lucifer's son."

"Goodbye."

"No, no, no. Stop, stop. He's a great kid. His mother was a fantastic human being, a-a-and he wanted nothing to do with Lucifer, w-who is dead, as you know."

"I hope he's rotting."

"Yes, but Lucifer stole Jack's grace, so he's powerless now, and -- and something's going on with him, and he might die." Nate explained.

"Oh, splendid! The sooner the better! From what I know of the father, the world will be better off without the son."

"You might be right. We're all still figuring that out. I'm Jack. And I know people have a lot of strong feelings about my father, but I'm --I'm trying hard not to be like him. Sam, Holly, Nate, and Dean, they -- they say such nice things about you." Jack said.

"They do?"

"You saved all of us -- from Apocalypse World."

"Well, that's true."

"So, before you go, I -- I just wanted to say... thank you."

"Jack. Hey, buddy. Hey. You're all right." Sam told him.

JACK'S BEDROOM

"Bollocks." Rowena muttered as she spoke a spell. "Possim rei huius cognoscere causas... Possim rei huius cognoscere causas..."

"How am I?" Jack wondered.

HALLWAY - BUNKER

"And?" Dean and Holly pressed.

"It's as I suspected. A Nephilim, for all its power, is an unnatural presence. Part human, part angel... It -- It doesn't quite fit. It's delicate. Its grace is what holds it in balance, and when Jack's grace was taken from him, his being fell into chaos. The -- The cells are gobbling each other up." Rowena told them.

"Well, if it's grace he needs, he can have mine." Cas offered.

"No, dear, it won't do. Jack is part archangel. He needs a much stronger force and probably some kind of magic, and he needs it quick."

"How quick?"

"I don't... I don't exactly know, but he's enterin' a critical phase. Sometimes he'll look just fine, but then his body will give way and... it'll be the end of him."

ALLEY BEHIND A BAR

A girl was talking on the phone. "Hey. Yeah, no. Wasn't sure which one you thought would be the best one."

"Don't do it. Don't do it. Don't do it." Nick said. "Evening."

"Evening yourself."

"You're out here alone? That's sort of dangerous, isn't it? Weird! That sounded weird. I just meant be safe."

"Just hadda use my phone. I'm headed back in."

"Copy that. Have fun."

"Did you wanna come in? Meet my friends...?"

"That sounds awesome, but it's a nice night, and it's so loud in there."

"I know. That's the best part. Come on, it'll be fun."

"Get away from me."

"...what?"

"Get away from me! Now! Go!"

BUNKER

Jack was packing a duffel.

"Hey, pal. I brought you some carbs. You, uh... You goin' somewhere?" Dean asked.

"Thought I'd go to Vegas. Maybe Tahiti." Jack replied.

"Okay. Nice. You think this is the best time?"

"Pretty sure it is."

"Listen, Jack --" Holly began.

"Since I've been alive, everyone assumed. I would be this special "person" who goes on forever. Only now it looks like forever might be a couple of weeks, so -- We don't know that. What I do know is I'm done being special. Before my life is over, I want to live it. I-I just want a chance to... get a tan... to see a hockey game... get a parking ticket... get bored... and when it's all over... die."

"So that's your plan, huh?" Dean questioned.

"I don't want to waste time arguing. I know you two disagree."

"Did we say we disagree?"

BUNKER LIBRARY

Sam and Rowena were on separate phone calls.

"..and how likely do you think that is? Because no hunter I've spoken to has heard of anything." Sam said.

"I know you're not speakin' to me, Magda, basically no one is speakin' to me, but I have a situation. There's a wee nephilim I know who's ailing..." Rowena was interrupted.

"Dean, Holly -- the bunker's vault has a number of Enochian texts on archangels, but nothing on their half-human offspring."

"And I've spoken to some of the greatest minds in witchcraft, and they all say there's nothing that'll help Jack." Rowena said.

"Well, then, they're not the greatest minds, are they?" Dean asked.

"Well, I just got off the phone with Ketch. Um, he's got a line on a shaman." Sam told them.

"A shaman?" Dean and Holly repeated.

"Yeah, the British Men of Letters used to use him -- as a consultant. Whenever they needed to "solve the unsolvable" -- he was their guy. He's an expert in mysticism -- esoteric divinity. I mean, Ketch says the Brits swore by him."

"Ketch "says."" Cas repeated.

"Yeah. His name is "Sergei," I-I got a location, and Ketch says he'll set up a meeting."

"Okay, I'll go. You, Holly, Nate, and Dean need to stay here with, uh..."

"Jack, hey. W-What are you, uh --" Nate was interrupted.

"We're -- We're headed out."

"You're, uh... Where?" Cas wondered.

"We're takin' Baby for some exercise." Dean said.

"You think that's a good idea?" Sam asked.

"Yeah." Dean looked between Jack and Holly. "Come on."

FAST FOOD PLACE

"Hey. Why don't you drive?" Dean tossed the keys to Jack.

"...what? Dean, I-I don't drive." Jack said.

"Now you do."

"Okay, um..."

"Ah, ah, ah. That "R" is not for "Race." Put it in park."

"Okay."

"Start it."

"Um..." Jack glanced at Holly who nodded encouragingly.

"Oh, boy. There we go."

"Okay."

"D for "Drive." Okay. All right."

"Okay, uh..."

"Keep going."

"That..."

"Okay, look. You know what?"

"I'm not very good at this."

Holly smiled. "You're better than I was when I was learning." She let out a long breath.

"No, you're doing just fine. Okay, try using one foot, not two, and, uh, just relax. Take it smooth. Don't overthink it." Dean encouraged. "Here we go."

"Okay." Jack said.

"See? Huh?"

"Yeah."

"Perfect. Whoa, whoa. Let's keep it in between the lines. There we go. That's..."

"Okay, okay. All right. It's like I'm you. And Holly."

"No, it's not."

"Okay."

"Eyes on the road. Feels good, doesn't it?"

"Yeah."

"Oh, ho, ho. All right."

"This is the best day ever!"

Holly smiled. "Yeah, it is pretty awesome."

"You know what? There's nobody around. Why don't you open it up a little bit?" Dean suggested.

"Yeah. Yeah! Huh?!" Jack exclaimed.

BUNKER

"If this "Sergei" has anything even remotely useful to offer, I'll call." Cas said.

"Yo, Cas, wait. Are you sure you wanna handle this alone?" Sam asked.

"I, uh... I feel the need to do something. And I think Dean's right. We can't afford to overlook any possibility. He seems to be taking this particularly hard."

"Yeah, yeah. Yeah, he -- he, uh, was pretty rough on Jack at the beginning, and... I don't think he's forgotten. Holly was less rough, but still kind of harsh. And Nate and I know they haven't forgiven themselves. You know, they've lost people, we've all lost people, but, um..."

"This feels different. Losing, um... a son... feels different."

IMPALA

"I can drive!" Jack exclaimed.

"Yeah, you can." Dean said.

"No, for real. I'm a driver."

"Yeah, born with the wheel in your hand, right? All right, so what do you want to do next? I know of a bar near here, little low on class, but high on hook-up potential. Personally, I've never missed at this place. Hm?"

"Actually, I've kind of got an idea."

HOUSE

"Hey." Nick greeted.

"Yeah?" Frank asked.

"Frank Kellogg?"

"Do I know you?"

"Um, I just wanted to talk to you for a couple of minutes about the night you came over to my house."

"Pal, I been to a lot of houses. Yeah, but this was in Pike Creek."

"When you were a cop. Nine years ago."

"I don't remember you."

"No, I wasn't there. Um... My wife and my son were there. Alone. Until you showed up. So let's talk."

CREEK

Dean, Holly, and Jack were fishing.

"Well, bait and beer. Iced tea for Holly. You are a cheap date. This certainly isn't Tahiti." Dean said.

"You once told me you and your father did the exact same thing. It was your happiest memory of him." Jack remembered.

"I didn't say that."

"It was how you said it. I could tell. I guess my point is that... if I don't make it... The stuff I'd miss -- it wouldn't be things like Tahiti. Or the Taj Mahal. I'd miss more time with you. I'm getting that life isn't all these big, amazing moments. It's time together that matters. Like this."

"Well, who'd have thought hanging out with me and Holly would make you sentimental?"

"I've had a good life, Dean, Holly." Jack answered, turning to Holly. "I wish I was able to meet your child."

SERGEI'S MOTORHOME

"Sergei? Sergei?!" Cas called.

"The angel Castiel? And who else?" Sergei asked.

"Do you see anyone else? Is the Holy Fire really necessary?"

"Self-preservation makes many things necessary. Please, sit. As for my curriculum vitae, I'm passionately peripatetic. No roots. I've re-crossed the globe many, many times over. Studying and observing the skills of myriad witches, and seers, holy men, et cetera."

"And what is it exactly you do? Answer the unanswerable?"

"No. Know the unknowable. And I am first and foremost a healer."

"And you know Ketch?"

"We've never met face-to-face, but -- our reputations are mutually stellar."

"I wouldn't call Ketch "stellar.""

"Then you have met him. But -- back to this nephilim you've been fostering..."

"Jack. His name is Jack."

"Well, "Jack" is in a pretty pickle. If what you're telling me is right, his condition is dire."

"Do you think it's reversible?"

"Not as such, but... it can be shocked out of its progression by a recharging agent. Think of it like you're, uh, rebooting a computer. And where would one find such a thing? First and foremost, a healer. And... Archangel grace? Vintage. From Gabriel. In trade for my home-brewed cloaking spell. He used it to hide away in Monte Carlo."

"With porn stars, yes, I know the story."

"But this alone won't do the trick. It must be administered along with the precise recitation of a spell."

"And what is all this going to cost?"

"Don't insult me. I never take money. My skills are exclusively for barter."

"Then what is it that you want?"

"I don't know. But... tell the Winchesters they owe me."

FRANK'S HOUSE

"Well, Frank, how long you gonna hold out, man?" Nick asked.

"Nick... I don't even know what you're talking about." Frank replied.

"Really? Okay, um, well, let me just lay the scenario out for you one more time. My ex-neighbor, Arty, said he saw someone coming out of my house the night of the murder, right? And then he changed his mind. I didn't --I didn't buy it... but, uh, he stuck to story number two till I came along. Paid him a visit. I was very, very persuasive."

"You saw somebody leave my house, didn't you? Didn't you?!"

"It was a cop."

"So, Arty said when he told the cops what he saw, they threatened him. They said, "Keep your mouth shut or else." It was like those, uh -- what do you call it cover up... like they were protecting one of their own."

"What does any of this have to do with me?"

"Glad you asked, buddy. I got in contact with the reporter, and she gave me the name of