The Impala is parked in an underpass. Jamie and Dean are both there. Dean is on his cell phone, leaning against his car. He is fidgeting, clearly upset. Jamie is beside him on her cell phone. She looks like she hasn't slept in days and she's still wearing the clothes she had on when Dean pulled her from whatever she was hunting. It's evident by the fact that her t-shirt is torn and there's green slime on her jacket. She's on the phone with Bobby while Dean tries to reach Ellen. "Alright, thanks Bobby." She says into the phone and then hangs up. She frowns and looks at Dean, who also frowns.

"Ellen, it's me again. Any chance you've heard from him?" Dean pauses for a split second. "I swear, it's like looking for my dad all over again. I'm losing my mind here." Jamie takes a step towards him and puts her hand on his arm. "No, I've called him a thousand times, there's nothing but voicemail. I don't know where he went, or why. Sam's just gone." Jamie looks away. Dean's cell phone beeps. "Hang on." The phone shows another incoming call - SAM'S CELL.

Jamie turns towards Dean. "Sam?"

Dean nods. He answers it. "Sammy? Where the hell are you? Are you okay?" he pauses, Sam is nearly hysterical on the other end. "Hey, hey, hey! Calm down. Where are you? All right, don't move, we're on our way." He hangs up and looks at Jamie. His face is dark with worry. "He's really out of it, we've got to hurry."

Jamie nods, already heading over to the passenger side. "I'm right behind you." They get into the Impala and Dean screeches the tires as they tear out in Sam's direction.

Dean drives to reach Sam, passing a sign reading TWIN LAKES; he arrives at the hotel and parks, gets out. Jamie gets out beside him. "What do you think happened?" Jamie ask as they hurry inside.

"I don't know." Dean goes over to the hotel manager and asks for Sam's room number. Jamie squeezes her eyes shut for a moment, trying to will a number. "Jamie!" Dean grabs her.

"109." They say together. They stare at each other for a moment and then walk frantically down a narrow hallway, checking door numbers until they reaches room 109. Dean knocks.

"Sam, it's us. Sam!" He tries the door and surprisingly it's open. Inside, Sam looks like he hasn't moved in awhile, he's still, sitting numbly on a bed. "Sam? Hey."

Jamie starts to walk over to him. "Hey Bro."

He looks over at them. He's quiet and then greets them. "Hey, Dean. Jamie." They walk over to him. Jamie stops short, noticing Sam's hands. Dean kneels down beside him.

"Are you bleeding?" Dean asks.

Sam looks down. "I tried to wash it off."

Sam's shirt is covered in blood. Dean and Jamie both see it at the same time. Dean immediately gropes at it, searching for a wound.. "Oh my god."

Jamie's eyes widen with horror. "Jesus. I'll get the med kit, Dean." She turns away towards the door.

Sam turns slightly in her direction. "No. Wait. I don't think it's my blood."

Jamie moves back over to him. "What?"

Dean looks up at him. "Whose is it?"

"I don't know."

Dean and Jamie share a look. "Sam, what the hell happened?"

"What the hell is going on?"

Sam finally looks up. "Guys. I don't remember anything."

A while later Dean returns to the room, carrying a grocery bag. Jamie is sitting the bed cleaning her jacket. She's wearing a tank top and one of Dean's button down shirts. SAM has changed clothes too and is looking a little less out of it. Jamie gets up seeing Dean come in. "Thank God, I'm starving." She goes over to the table and looks in the bags. Sam turns to Dean.

"What'd you find out?"

Dean glances in his direction. "You checked in two days ago under the name Richard Sambora. Of course, I think the scariest part about this whole thing is the fact that you're a Bon Jovi fan."

Jamie punches Dean on the arm. "Don't knock Bon Jovi." He snickers and shoves her back lightly. She throws a chip at him and he laughs. Sam clears his throat.

"Dean."

Dean and Jamie look serious again, both turning to look at Sam. Dean walks over to him. "Your room's been quiet, nobody's noticed anything unusual."

Jamie puts a chip in her mouth.

Sam sighs. "You mean no one saw me walking around covered in blood?"

"Yeah. That's what I mean."

"Then how the hell did I get here, Dean? What happened to me?"

Dean turns away. Jamie puts the bag of chips down and looks at her oldest brother. He glances to her and then turns back to their brother. "I don't know. But you're, you're okay, and that's what matters. Everything else we can deal with." Jamie nods in agreement.

Sam isn't so convinced. "Oh really? 'Cause what if I hurt someone? Or worse?"

"Sam . . ." Dean starts to say.

"What if this is what Dad warned you about?"

"Sam." It's Jamie this time. She crosses her arms tightly over her chest. Dean puts his hands up. His voice is urgent.

"Hey, whoa, whoa, come on man, let's not jump the gun here. We don't know what happened. We've just got to treat this like, like any other job."

Jamie nods." Right. What's the last thing you remember?"

Sam sighs, sitting down. He looks at Dean. "Just me and you, just, in that motel room in West Texas, going out to grab some burgers, and... "

Dean cuts in. "West Texas? That was…" He looks at Jamie.

Jamie looks at him. "Over a week ago. We've been looking for him for a week."

Sam looks up at both of them. "That's it." Dean looks stunned. Jamie looks worried. "Next thing I knew I was sitting here. Bloody. Felt like I'd been asleep for a month."

Jamie sits down beside Sam. "Oh God."

Dean crosses his arms. "Okay. Retrace your steps. The manager said you left yesterday afternoon and he never saw you come back, so…Jamie come here. Do your…thing." Jamie gets up. She and Dean look at each other. Jamie sighs and closes her eyes. After a moment she turns towards the window and takes a few steps forward. Dean walks over to the window. He pulls back the curtain, and finds a bloody fingerprint on the window. Jamie opens her eyes. "Hey."

Sam Jamie and Dean walk outside the motel. It's daylight, but raining.

Dean turns to Sam. "Recognize anything?"

"Not really." They go towards a parking garage out back. "Wait."

Dean and Jamie look at each other. "What?"

"I think I was here."

"You remember?"

"Not really, it just feels familiar, you know?" Dean shrugs, goes to the nearest garage. Sam looks over to the second, points."Try that one."

Jamie looks at Sam. "Yeah."

Dean tugs on the padlock. "Okay."

"Wait."Sam digs in his pocket, frowning. He pulls out a key, gives Dean a significant look.

Dean opens the padlock with the key, raising his eyebrows at Sam.

Jamie puts her hand on her stomach. "There is a really bad feeling welding up in my gut guys."

Dean glances at her. "As long as it's not a headache." He pulls the garage door open to reveal a filthy, beat-up VW Beetle.

Jamie raises and eyebrow. "Really Sam?"

Dean smirks. Sarcastically. "Oh, please tell me you didn't steal this."

Sam fidgets. They go into the garage and open both doors of the car, Sam on the driver's side, Jamie and Dean on the other. Sam touches the wheel, shows them his stained finger."More blood."

Jamie nudges Dean and nods. "Not just there."

Dean points. "Sam. Back seat."

Sam reaches down, picks up a blood-stained knife that sticks to the floor of the backseat. He stares at it. "You think I used this on someone?"

Jamie raises an eyebrow.

Dean pauses. "I'm not thinking anything."

Sam looks around, rubs the knife handle off on the inside of his jacket. Jamie picks up a pack of cigarettes. "Guys."

Dean grabs them. "Okay now, this is disturbing. Come on, man, this couldn't have been you. Had to have been someone else, someone who," He sniffs the pack. "…smokes menthols."

Sam picks up something. "Here. Gas receipt. Few towns over."

Jamie looks at her brothers. "Let's go."

Sam, Jamie and Dean pull up in front of a small gas station.

"All right. Receipt's for ten gallons at pump number two. You getting any, uh, any goosebumps yet? God, this looks familiar, deja vu vibes?" Sam shakes his head quietly. "Maybe someone inside will remember you."

Jamie nods. "Yeah, let's go in."

They go into the convenience store; the clerk looks up in shock, then anger. "You. Outta here now, I'm calling the cops."

Jamie puts her hands up, steping in front of Sam. "Whoa, easy."

Dean looks at Sam and then at the clerk. "You talking to him?"

"Yeah, I'm talking to him. Jerk comes in yesterday, stinking drunk, grabs a forty from the fridge, starts chugging it."

Jamie raises an eyebrow. "What?"

Dean makes a face. "This guy?" He turns to Sam. "You're drinking malt liquor?"

"Not after he whipped the friggin' bottle at my head."

"Huh?"Jamie looks at Sam in disbelief.

Dean shakes his head. "This guy?"

"What, am I speaking Urdu?"

Sam sighs looking bewildered. "Look, I'm really sorry if I did anything…"

"Tell your story walkin', pal. Po-po will be here in five."

Dean groans, trying to get control of the situation. "Wait, wait, put the phone down. Sam, go wait in the car."

"But Dean…"

"Go wait in the car!"

"Come on, Sam. Car, come on." Jamie grabs his arm and pulls him outside. They go and stand near the Impala. Sam looks at his sister.

"Jamie, I'm starting to get really freaked out."

Jamie looks up and leans against the car, crossing her arms. "I can't read you, Sam. It's kinda freaking me out too." She and Dean share a look through the window. "But Dean and I are gonna fix this."

Dean is driving down a dark road, and Sam is staring out the window. Jamie is leaning her head against the window in the backseat. Dean glances at Sam and then back at the road. "What's going on with you, Sam? Hm? 'Cause smoking, throwing bottles at people, I mean, that sounds more like me than you."

Jamie snickers. Sam doesn't answer. Instead he points something out.

"Dean, wait, right here. Turn down that road."

"What?"

"I don't know how I know, I just do."

"Do it, Dean."

Dean turns down a back road and onto a private property. It is a large house with plenty of emergency lighting and security cameras outside. Sam glances around, impressed. "Whoever lives here, I'd say they don't like surprises."

Jamie puts her hand on her stomach. "Oh there's that feeling again."

Dean looks back at her. "Maybe you're pregnant." Jamie throws her flashlight at him. He catches it and chuckles. "Should we knock?" He hands the flashlight back to Jamie.

Sam shrugs. "Yeah, I guess."

Dean knocks on the front door while Sam and Jamie poke around the corner.

"Hey Dean." Sam waves his flashlight at a window; it is broken, the ledge covered in shattered glass.

"I'm surprised the cops didn't show. Place like this you'd think it'd have an alarm."

Jamie finds a disabled alarm on the wall. "Yeah, you would."

They go into the house; the floor is covered in broken glass and scattered items. In a back room, they come across a body on the floor. "Damnit." Jamie cusses. Dean glances then and then back to Sam.

"Get the lights."

Sam turns the lights on as Dean kneels behind the body. He places a hand on it and turns it over; it is a middle-aged man with a deeply cut throat; he is dead, his eyes staring. Dean puts a hand over his own mouth; Jamie gasps and steps back, Sam looks horrified.

"My god." Jamie mutters.

"I did this."

Jamie turns and looks at her twin. "Sammy…"

Dean shakes his head. "We don't know that."

Sam stares at him. "What else do you need? I mean, how else do you explain the car, the knife, the blood,"

"I don't know, man, why don't you tell me?" Dean pauses and then continues. "Look, even if you did do this I'm sure you had a good reason; you know, self-defense, uh, he was, he was a bad son of a bitch, something." He pats down the body. "He doesn't have any ID."

Sam is staring at the wall. "I need your lockpick."

"What?"

Jamie looks up. "Your lockpick." Sam takes the lockpick and opens a double-door closet in the room. Inside the room, one wall is covered in firearms, the others in charts and clippings. Dean and Jamie get up and move closer. "Now why does this look eerily familiar?"

Dean looks around. "Either this guy's a Unabomber…"

"Or a hunter. Dean, Jamie, I think I killed a hunter."

Dean sees a security camera near the ceiling. "Let's find out."

Later, Sam is sitting in front of the desktop computer, Jamie and Dean standing behind. He cues up the security tape.

"Here we go." Dean mutters. On the tape, Sam is fighting the same man who lies dead on the floor behind them. The fight moves off camera and Sam drags the man back into the frame; he kneels, the man pulled up against his legs, and slits his throat. Sam stares in shock, Jamie puts her fist in her mouth, Dean pulls back from the screen and stands straight. Close on Sam, eyes downcast.

Sam is sitting at the computer desk, staring at a page in his hand; Dean and Jamie bustle around behind him, cleaning up.

Dean moves to the computer. "How do you erase this? Huh? Sam, come on, I need your help."

Jamie moves Dean's hands out of the way. "I've got it, Dean." Jamie pulls the keyboard away from Sam and starts erasing the video.

"I killed him, Dean. I just broke in and killed him."

"Listen to me. Whoever this guy is, he's a hunter. Which means that other hunters are going to come looking for his killer, which means we've got to cover our tracks, okay?"

"Boys, we've got to hurry. They could realize he's missing any time now. And Winchesters aren't exactly beloved…"

"His name was Steve Wandell. This is a letter from his daughter." Dean looks from Sam to the letter, then at Jamie, and then makes a decision. He grabs the CPU, lifts it above his head, and smashes it to the floor, stomping it with his boots for good measure.

Jamie looks impressed. "Well that's one way to do it."

"Wipe your prints, then we go."

Jamie finishes wiping down the prints and the three of them go back to the motel room. They're quiet during the drive. Sam precedes Jamie and Dean into the motel room.

Dean looks around, trying to stay calm. "All right, we get a couple hours sleep and then we put this place in our rearview mirror. Look, I know this is bad, okay? You've gotta snap out of it. Sam, say something!"

"Just get some sleep and leave in the morning? Murder, Dean. That's what I did."

Jamie moves out from behind Dean. "Sam, you don't know that."

Sam scoffs. Dean raises an eyebrow. "Dean: Okay? Hey, we don't know... shapeshifter!"

Sam shakes his head. "Oh, come on. You know it wasn't, you saw the tape. There was no eye flare, no distortion."

Jamie narrows her eyes. "So it's something else then!"

"Yeah," Dean agrees. "But it wasn't you! All right? I mean, yeah, it might have been you, but it wasn't you."

"Well, I think it was." He sits down on the bed. "I think maybe more than you know."

"Sam…"Jamie sits down beside him.

"What the hell does that mean?" Dean asks.

"For the last few weeks I've been having... I've been having these feelings."

"What feelings?"

"Rage. Hate. And I can't stop it. It just gets worse. Day by day it gets worse."

Jamie takes one of Sam's hands in hers. She looks over at Dean.

"You never told me this."

"I didn't want to scare you."

"Well, bang-up job on that."

"Dean…"

"Dean, the yellow-eyed demon, you know he has plans for me. And we all know that he's turned other children into killers before, too."

Dean sighs. "No one can control you but you."

"It sure doesn't seem like that, Dean, it feels like no matter what I do, slowly but surely I'm, I'm just becoming..."

"What?"

Sam looks him square in the eye. "Who I'm meant to be."

Jamie squeezes his hand. "Sam, that's crazy. This is not who you're meant to be."

"Isn't it though Jamie? Besides, you and I are different. You're the one who got away. And Dean, you said it once yourself. I gotta face up to who I am."

"I didn't mean this!" Dean practically shouts in his face. Jamie flinches.

"But it's still true. You know that. Dad knew that too, that's why he told you, if it ever came to this . . ."

Jamie shakes her head. "No. No way."

"Shut up, Sam."

"Dean, you promised him. You promised Jamie. You promised me."

"No. Listen to me. We're going to figure this out. Okay? I mean, there's got to be a way, right?"

"Right. Whatever is going on, we'll hunt it, kill it."

"See, you just need Jamie's attitude and we'll find a way."

"Yeah, there is a way." Sam gets up and takes a handgun from his duffel, shoves it at Dean. "I don't want to hurt anyone else. I don't want to hurt you. I don't want to hurt Jamie."

Jamie gets up. "Sam. No."

"You won't. Whatever this is, you can fight it."

Sam starts tearing up. "No. I can't. Not forever. Here, you gotta do it."

"No. No. Come on. Dean, you can't." Jamie stands in front of them. They all stare at each other for a long moment; then Sam grabs Dean's right hand and places the gun in it. Dean doesn't move, just stares as Sam in shock. Jamie starts tearing up.

"You know, I've tried to hard to keep you safe."

Jamie lets out a sob. "Dean."

Sam nods. "I know."

Dean looks down at the gun and then back at his brother. "I can't." Dean drops the gun on the bed and shoulders past Sam. Sam looks at Jamie and picks up the gun.

"Jamie, please."

"You're my brother. My twin."

"Then as my twin, please do this for me. Please. You have to." Sam puts the gun into her hand.

Jamie looks down at the gun in her hand. She looks up at Sam. "Jamie: No. I can't."

"You can. You understand. You can feel." Jamie raises her hand, gun pointed towards Sam. Her hand is shaking violently.

Dean looks over at them. "Jamie…Jamie you can't be serious."

Jamie looks at the gun and slowly lowers her arm. "I can't do it."

"Jamie…"

"I mean I can't go against Dean." She stares at Sam and then turns to Dean. "I won't go against you." She gives the gun to Dean who looks down at it and then gives it back to Sam.

Dean turns away. "I'd rather die."

"No. You'll live." Dean turns to face him. "You'll live to regret this."

He pistol-whips Dean, who falls to the floor unconscious. "Dean!" Jamie yells in shock. Sam turns to her. She brings her hand up to fling him back but he clocks her on the side of the head and she falls down unconscious as well.

An insistent knocking begins even though Dean and Jamie are still blacked out. Dean awakens to realize that he is on the floor of the motel room. Jamie groans and sits up. Dean looks at her as the motel manager, who has been knocking, opens the door.

"Hey. It's past your checkout."

Dean gets up, very groggy. "What?"

Dean helps Jamie up. She holds her head.

"It's past checkout, and I've got a couple here needs your room."

Dean sees an embarrassed businessman with a hooker. "Yeah, I'll bet they do. What time is it?"

"Twelve-thirty."

Jamie puts her head in her hands. "Ugh. Well I've got that headache now."

Dean turns to the manager. "That guy who was with us, have you seen him?"

"Yeah, he left before dawn in your car, and you should have gone with him, because now I'm going to have to charge you extra."

Jamie rolls her eyes. Dean mutters to himself. "Oh, son of a..."

Jamie scoffs. "You can say that again."

"It's just policy, sir."

"I need to use your computer."

The manager looks at Dean and Jamie, a little stunned.

"Now, why would I let you use my computer?"

The Manger is counting a stack of cash, as Dean talks on the phone behind him, in front of a desktop computer. Jamie in standing behind him, leaning against the counter. "Hi, uh, so sorry to bother you, but uh, my son snuck out of the house last night and, uh, went to a Justin Timberlake concert." He pauses. "What? Yeah. No, Justin is quite the triple threat." Jamie raises an eyebrow. "Uh, anyway, he's not back yet, and, and I'm just, I'm starting to worry." He pauses again. Jamie shifts. "Right. Yeah, boys will be boys. But see, Sammy is…" He looks at Jamie for help.

"Diabetic." Jamie mouths.

"A diabetic and uh, if he doesn't get his insulin, I just, I have to find him. Please, I'm begging you. Yeah, no, no, no, I"m on the web site right now, I just need to activate the GDS in his cell phone." He enters the password. "Yeah, right there. Duluth, Minnesota. Yeah, that is a long way to go for a concert. I appreciate your help."

Jamie moves her hair out of her face. "What the hell is he doing in Minnesota?"

"I don't know, but we're gonna find out."

"Oh have I got hard-cover book with his name on it."

Dean parks the Impala and he and Jamie get out. Jamie props open the trunk and grabs a few things. Dean waits, leaning against the door. She hands something to him and then gets out her handgun. Dean gets his out. They share a look and Jamie starts for the bar. Dean grabs her arm.

"Wait." She turns to him. "Did you mean it? That you can't shoot Sam as long as it's against my wishes."

"Yes." She answers softly, averting her eyes.

"You can kill him. Just like that. Your own brother. Your twin." Jamie doesn't say anything. "That's what I thought."

"I'd do it if I had to, Dean." She pulls her arm away from him and starts walking. She stops, wiping her eyes. "But you have to be dead first. Because I know you will never let anything happen to him."

"You are just like Dad."

"Shut up."

They bust the door open and walk in guns out. They see Sam with Jo tied to a pillar.

"Sam!" Dean yells.

Jamie clicks off the safety. "Get away from her!"

Sam grabs the knife from the pillar, his calm expression shifting to one of desperate panic, and places the knife at Jo's throat. "I begged you to stop me."

"Put the knife down, damnit."

"Please, Sammy." Jamie begs.

"I told you I can't fight it! My head feels like it's on fire, all right?! Dean. Jamie. Kill me, or I'm going to kill her. Please. You've be doing me a favor! Shoot me." He turns to face his siblings, arms spread. "Shoot me!"

Jamie curses. "Damnit. Sam."

"No, Sammy, come on." Dean turns away, lowering the gun. Jamie keeps her raised, as though she's considering it but Dean grabs her arm. Jamie lowers her gun.

"What the hell's wrong with you, two? Are you that scared of losing me that you'd rather let Jo die?"

Dean turns suddenly, flinging water from a flask at Sam; the water hisses and steams as it strikes him. "That's holy water, you demonic son of a bitch!"

Jamie nods. "Get the hell out my brother!"

Sam raises his head; his eyes are the solid black of a demon's. Jamie flings more holy water at him; Sam growls, turns and runs, bursting through a window and fleeing. Jamie runs after him and looks down the window. Dean takes the knife and cuts Jo free; Jo pulls the gag out of her mouth as Dean runs towards the shattered window.

"He was possessed?!" Jo asks. Dean turns and stares at her for a moment, then looks at Jamie. Jamie nods. Dean leaps through the window. "Dean! Jamie, what's going on?"

"We're going to get our brother back." Jamie leaps through the window.

Dean and Jamie and Sam stalk each other through a dim, crowded warehouse, all with a handgun. They all hide stealthily behind piles and boxes, Sam never sees Dean and Jamie, and Dean and Jamie never see him. Instead they shout at each other.

"So who are you?" Dean yells.

"I got lots of names." Sam answers.

"Oh yeah, any of them I'm familiar with?" Jamie asks.

"Wouldn't you like to know."

"You've been in Sam since he disappeared, haven't you?"

"You should have seen your face when you thought he murdered that guy. Pathetic."

Jamie growls. "Wait till I get my hands on you. I'm gonna exorcize you back to hell, asshole."

"I'm sure you will Jamie, I'm sure you will."

"Why didn't you kill us? You had a dozen chances." Dean asks as he creeps closer, Jamie following him.

"No, that would have been too easy. Where's the fun in that? See, this was a test. Wanted to see if I could push you far enough to waste Sam. Should have known you wouldn't have the sac. But Jamie. Jamie, I expected more from you. Afterall you were the one screaming for Sam to shoot Daddy."

Dean looks at Jamie. Jamie's face is flushed with anger. "Shut up! Shut the hell up!" Dean squeezes her shoulder.

Sam chuckles. "Anyway. Fun's over now."

"Well, I hope you got your kicks. Because you're gonna pay hell for this, I'm gonna make sure of that."

"How? You can't hurt me. Not without hurting your little brother. See, I think you're gonna die, Dean. You, and Jamie, and every other hunter I can find. One look as Sam's dewey, sensitive eyes? They'll let me right in their door. "

Sam leads Dean and Jamie outside, to an open-air dock. Jamie stays close to Dean. Once Dean and Jamie are out in the open, looking around, Sam steps out behind them, takes aim, and shoots Dean, hitting him in the shoulder. Dean collapses into the water with a splash.

"Dean!" Jamie looks at Sam who points his gun towards her. This time Jamie is faster, she eyes the gun and it flies out of Sam's hand. She throws herself into the water. Sam stalks to the edge and peers over where his siblings fell; he smiles.

Jamie can feel when Sam's eyes are no longer on them. She comes up quickly for air and then dives back under, searching for Dean. The water is black and she can barely see. "Dean?" She calls coming up for air again.

"Jace." She hears him call her nickname and then disappear again. She dives under and swims over to him. She pulls him up to the surface and then drags him over to the dock. "Jace." They both collapse on the dock and Dean goes unconscious. Jamie shivers and then coughs.

Jo is walking quickly through the docks, a flashlight in one hand and her cell phone in the other; she's calling Dean, and his voicemail picks up: "This is Dean. Leave a message." Jo hangs up the phone with a sigh and continues searching. Moments later she calls again, and this time hears Dean's ringtone coming from below her, by the water. She runs down to where he is lying unconscious at the bottom of a ramp. Jamie is beside him, coughing and gasping for breath.

"Jamie! Dean! Dean!" Dean wakes with a groan. "Take it easy."

Jamie growls and strikes the dock with her fist. "Damnit. Damnit. Damnit!"

Dean shudders and groans in pain. "Where's Sam?"

"He's gone." Jamie answers looking over at her brother.

"I've been looking for you two. Come on, get up." Jo helps Jamie stand up and they both help Dean to stand. Jamie wraps Dean's good arm around his shoulders and he leans on her heavily, clutching his shoulder. Jo holds him around the waist as they walk back to the bar.

"Jo, our med kit is in the trunk. Go get it." Jamie tells her. Jo nods and hurries out as Jamie helps Dean sit down against a table. Dean groans. Jamie grabs his face in her hands and makes him look at her. She reaches down and pulls off his outer shirt, hitching up the sleeve on the injured arm. Jo comes back with the med kit and with her own as well. She puts it on the table beside Jamie. Jamie is taking off her jacket and rolling up the sleeves of her t-shirt. "Thanks. What do you have for hard liquor?"

"What do you want?" She stares at Dean.

A few minutes later Dean is seated at the table, gripping the edge with his right hand as Jamie digs the bullet out of his left shoulder. Jo is standing beside Jamie holding a flashlight. Dean's groaning loudly.

"Don't be a baby!" Jo remarks.

"God!"

Jamie looks up at her brother. "Don't move, I've almost got it. Alright. Alright. Got it." She drops the bloodstained bullet in a glass of clear alcohol. Dean takes a few healthy swigs from a bottle of whiskey. Jo gets fresh bandages and hands them to Jamie.

"God, you're a butcher." Dean remarks looking at his arm.

"Yeah? I'll remember that the next time you patch me up." Jamie gets up and cleans her hands off with a rag. Jo sits down and starts bandaging Dean's shoulder.

"All right, are we done?"

"Would you give me two minutes to patch you up? We can't help Sam if you're bleeding to death." she continues layering gauze and tape over the wound. "So, how did you know? That he was possessed?"

Jamie grabs a beer and opens it, taking a drink. "He didn't. I did, or at least I suspected it."

Dean looks over at her. "Yeah you could have let me in on the whole psychic warning signs."

"Sam can block our twin thing inadvertently; I've told you that before. Besides, you didn't need me to tell you something was wrong with him."

"I just knew that it couldn't have been him."

"Hey, Dean?" Jo asks.

"Yeah?"

"I know demons lie, but do they ever tell the truth too?"

Jamie and Dean look at each other. "Uh, um, yeah, sometimes, I guess. Especially if they know it'll mess with your head. Why do you ask?"

Jamie moves back over to them. "She's wondering about her dad."

"He say something to you?"

"It's nothing. Doesn't matter. So do you have any idea where he's headed to next?"

"Well, so far he's been going after the nearest hunter, so . . . closest one I know lives in South Dakota."

Jamie's eyes widen. "Bobby….shit, Andrew!" Jamie runs over to a table and grabs her phone.

"Okay good, I'm done. Let's go." Jo says, glancing at Jamie.

"Yeah. You're not coming."

"The hell I'm not. I'm a part of this now."

"I can't say it more plain than this. You try to follow me and I'll tie you right back to that post and leave you here. This is my fight. I'm not getting your blood on my hands. That's just how it's gonna be. Jamie, come on, you can call your boyfriend in the car."

"Not funny." Jamie picks up Dean's jacket and hands it over to him. "I'm driving." She grabs the med kit and puts it under her arm.

"Like hell."

Jamie jingles Dean's keys in front of him and heads to the door.

"Wait." He turns back, and Jo hands out a prescription pill bottle. "Here. Take these, they'll help with the pain."

"Thanks. I'll call you later, okay?"

He heads back over to Jamie, who blows the door open and walks out ahead of him.

It's raining as Jamie drives down a dark stretch of road. Dean dials a number on his cell. It rings and then goes dead. "Damnit." He looks at his phone and sighs. Jamie shakes her head.

"Son of a bitch."

Sam is tied to a chair, before a fire and under the very same protective circle used on Meg when Dean and Jamie finally get to Bobby's.

"Took you long enough." Bobby remarks. Jamie smirks, watching Dean walk over to Sam. Dean smacks Sam in the face to wake him.

"Hey."

Sam looks up, sees the painted Devil's Trap. Jamie walks into view with Bobby whose holding a book.

"Dean. Back from the dead. Getting to be a regular thing for you, isn't it? Like a cockroach."

"How about I smack that smartass right out of your mouth?"

Jamie takes the book from Bobby. "If you don't, I will."

"Oh, careful, now. Wouldn't want to bruise this fine packaging."

"Oh don't worry, this isn't gonna hurt Sam much." He turns to pick up a bucket. "You, on the other hand," Dean tosses a bucketful of holy water on Sam, who sizzles and screams. "Feel like talking now?"

"Sam's still my meat puppet. I'll make him bite off his tongue."

"No, you won't be in him long enough."

Dean looks behind him at Jamie. Jamie opens the book. "I told you I was going to exorcize your ass back to hell." She finds the right page and begins to read. "Exorcisamus te, omnes immundus spiritus
omnes satanica potestas, omnes incursio…"

Dean talks over Jamie. "See, whatever bitch-boy master plan you demons are cooking up? You're not getting Sam. You understand me? Because I'm gonna kill every one of you first."

Sam struggles painfully, then throws back his head and cackles. Jamie cuts off in surprise.

"You really think that's what this is about? The master plan? I don't give a rat's ass about the master plan."

Dean nods to Jamie and she starts reading again.

"Humiliares sub potente magnu dei..".

Sam smirks. "Oops. Doesn't seem to be working. See, I learned a few new tricks." He lowers his head "Spiritus in mundus un glorum suarum umitite palatum iram domine ..." The fire behind him flares and the room shakes as he continues.

Dean looks shock and turns to Jamie. "Jamie, this isn't going like I pictured! What is going on?"

Jamie glances at Sam and sees the burn mark on SAM'S forearm. "It's a binding link! It's like a lock! He's locked himself inside Sam's body!"

"What the hell do we do?"

"I don't know!"

Sam throws back his head and screams; the shaking walls and ceilings begin to crack. Dean grabs for Jamie.

"Christ, Dean!"

"Jamie get back!"

The protective circle breaks. SAM's eyes are black as he lowers his head. Jamie squares her shoulders. "Sancte Michael archangele defende nos in praelio contra nequitiam et insidias diaboli esto praesidium…"

"There. That's better." He jerks his head left; Bobby and Jamie go flying. He jerks his head right; Dean goes flying, landing heavily against the far wall. The holy water flask falls from Dean's hand. Sam rips free of the restraints and stalks over to Dean. "You know when people want to describe the worse possible thing? They say it's like hell." Sam kneels in front of Dean, fisting his left hand in Dean's shirt and clocking him hard with a right jab. Dean grabs onto Sam's shirt with his right hand. "You know there's a reason for that. Hell is like, um," he hits Dean again. "Well, it's like hell. Even for demons." He hits him again; Dean is groggy and bleeding heavily from his nose. "It's a prison, made of bone and flesh and blood and fear;" He hits him yet again; then grabs Dean's head, holding it steady. "And you sent me back there."

"Meg." Dean sneers.

"No. Not anymore. Now I'm Sam." He hits him one last time; then digs his right thumb into Dean's bullet wound. "By the way. I saw your Dad there, he says "howdy." he digs in further; Dean tries to pull Sam's hand away, groaning in pain. "All that I had to hold onto was that I would climb out one day, and that I was going to torture you, nice and slow. Like pulling the wings off an insect." He shoves Dean's grasping hand away. "But whatever I do to you, it's nothing compared to what you'll do to yourself, is it? I can see it in your eyes, Dean. You're worthless. You couldn't save your Dad, you won't be able to save your sister, and deep down you know that you can't save your brother. They'd have been better off without you."

Sam rears back to hit Dean again; Jamie moves into view and waves her hand, sending Sam flying back. Bobby grabs Sam's arms. Jamie presses a hot poker into the mark on Sam's arm; he screams in pain.

"Exorcizamus te, omnis immundus spiritus, omnis satanica potestas, omnis incursio infernalis adversarii, omnis legio, omnis congregatio et secta diabolica. Ergo, draco maledicte et omnis legio diabolica adjuramus te. cessa decipere humanas creaturas, eisque aeternae Perditionis venenum , Satana, inventor et magister omnis fallaciae, hostis humanae salutis. Humiliare sub potenti manu dei,contremisce et effuge, invocato a nobis sancto et terribili nomine,quem inferi tremunt.
Ab insidiis diaboli, libera nos, Domine. Exorcizamus te, omnis immundus spiritus omnis satanica potestas, omnis incursion infernalis adversarii,omnis legio, omnis congregatio et secta diabolica. Ergo draco maledicte et omnis legio diabolica adjuramus te. Cessa decipere humanas creaturas, eisque aeternae Perditionis venenum propinare. Ecclesiam tuam securi tibi facias libertate servire, te rogamus, audi nos." Jamie chants. Sam screams again as black demon smoke billows out of him and up the chimney. Sam falls back, scrabbling and looking around in confusion, then grabs his arm in sudden pain. Jamie slides down beside them. "Sam!"

Dean pulls himself up painfully. "Sammy?"

"Did I miss anything?"

Dean looks at Jamie. She nods. "He's back."

Dean rears back and right-hooks Sam in the cheek, then rolls his eyes and collapses in Jamie's arms. Samgrabs his cheek in confusion. Jamie looks down at Dean and then at Sam. "And you wonder why I don't stick around long."

Sam is sitting behind Bobby's table with an icepack on his arm, Dean is on the other side of the table groggily holding an icebag to his face. Jamie is holding a washcloth to her forehead.

"By the way, you really look like crap, Dean." Sam says, cautiously.

"Yeah, right back atcha."

Jamie nods. "And I feel like crap so we're all even."

Bobby walks in slowly, looking concerned.

Sam looks at him. "What is it, Bobby?"

Jamie looks up. "What's wrong?"

"You three ever hear of a hunter named Steve Wandell?"

Dean turns. "Why do you ask?"

"Just heard from a friend. Wandell's dead. Murdered in his own house. You wouldn't know anything about that."

Jamie shakes her head. "Doesn't ring a bell to me."

Dean nods. "No sir, never heard of the guy."

"Dean. Jamie." Sam says quietly.

Bobby nods. "Good. Keep it that way. Wandell's buddies are looking for someone or something to string up, and they're not going to slow down to listen to reason. You understand what I'm saying?"

Dean gets up. "We'd better hit the road. If, uh, either of you can remember where we parked the car."

Jamie snickers. "I know where it is, but I can barely see with this damn migraine."

"Here. Take these." Bobby hands each of them a small metal charm.

Jamie looks down at it. "Bobby are these what I think they are?"

"What are they?" Sam asks.

"Charms. They'll fend off possession. That demon's still out there; this'll stop it from getting back up in you." Bobby explains.

Jamie snickers softly. She takes the washcloth off her head and gets up.

"That sounds vaguely dirty, but uh, thanks." Dean mutters.

"You're welcome. You three be careful now."

"You too."

"Love ya, Bobby. Oh and if you hear from Andrew, tell him to call me."

They all head for the door. Jamie blows it open and she and Sam step out. Dean pauses and turns, tossing the icebag back to Bobby.

Dean is driving down a dark stretch of highway; over the following scene, REO Speedwagon's "Back on the Road Again" plays. Sam is frowning quietly, and Dean glances over in concern. Jamie leans in from the backseat. "Sam?"

"You okay? Sam? Is that you in there?"

"I was awake for some of it, guys. I watched myself kill Wandell with my own two hands; I saw the light go out in his eyes."

Jamie sighs. "Oh Sammy." She wraps her arms around him.

"That must have been awful."

"That's not my point. I almost carved up Jo too. But no matter what I did, you two wouldn't shoot."

"We didn't have to."

"What do you mean?"

"It was the right move, Sam, it wasn't you."

"Yeah, this time. What about next time?"

"Sam, when Dad told me that I might have to kill you, it was only if I couldn't save you. Now, if it's the last thing I do I'm going to save you."

Jamie smirks. "And if it's any consolation, after Dean kills himself trying to save you, I'll shoot you." Sam almost smirks a little, looking back at his sister.

Dean nods. "That's right." After a pause, he laughs softly.

"What?" Sam asks.

"Nothing."

"Dean…"

"Dean, what?"

"Dude, you, you like, full-on had a girl inside you for like a whole week." He laughs. "That's pretty naughty."

"Dean…I'm going to sleep." Jamie throws herself down in the backseat. Sam's frown cracks, and he laughs with Dean. After a minute, they hear Jamie laughing as well.