Dean is running from something in the woods, but the growling creature catches up with him and he falls down, yelling and screaming as his blood spurts on his face.
'I don't remember this?' Sam commented, looking confused.
'It was just a dream.' Dean replied.
He wakes up, his head resting on a page he was reading about hell hounds. Sam comes in with a smile and reveals that Bobby has found a way to find Lilith.
'That's good. You at least have a chance to get out of it.' Mary realised.
Dean isn't convinced that the plan is going to work with only thirty hours to go and wants to live it up in a Mexican way.
'Of course you do.' Jo commented with a fond smile.
Sam jokes they should never do that, and sits down to reassure Dean that he won't let him go to Hell, but Dean isn't comforted when he hallucinates Sam as a ghoulish figure.
'That's so creepy.' Bobby commented. Mary and John looked at Dean worriedly as they realised just how little time he has left.
Bobby pulls out a device and, after reciting some Latin, finds that Lilith is in New Harmony, Indiana. Dean doesn't like the idea of taking on Lilith unprepared.
'Yeah. That's not a good idea.' Mary commented.
Sam wants to summon Ruby, but Dean refuses to let him and tells Bobby and Sam to find something else.
'You definitely shouldn't summon her.' John commented.
Sam summons Ruby anyway, and she tells him he can defeat Lilith using his psychic powers and other abilities instead of her knife. Lilith is on "shore leave" and has her guard down.
'Of course she is.' Jo said, sarcastically.
She didn't tell Sam this before because he would have never considered the idea unless he was desperate. Sam takes in what she says but Dean arrives, refusing to let her help Sam tap into his abilities.
'Please tell me that you didn't.' Mary asked. Sam bit his lip and refused to meet her eyes.
He fights her and after taking a beating steals her knife while trapping her under a devil's trap.
'Just use the knife. That should work.' John added.
Sam tries to get Dean to listen to Ruby, but Dean tells him they need to stop making the same mistakes all over again and stop allowing themselves to be martyrs for each other.
'Well that worked.' Dean said, with a smirk.
They should go after Lilith their way and if they fail they will go down swinging. Dean asks, "What the hell does a demon do for fun?"
'I really don't wanna know that.' John said.
We find out that Lilith has taken over the body of the young daughter of the Fremont family and is terrorising them. She is holding dad, mom, and grandpa hostage and has killed grandma (or the sitter) and the family pet.
'That's their idea of fun?' Mary asked, looking shocked.
Sam and Dean try to leave, but the Impala won't start. Bobby shows up with the distributor cap in his hand and says he's going with them because "family don't end with blood."
'Thank you Bobby. I'm glad you came with us.' Dean replied.
'Thanks. I wasn't exactly much help though.' Bobby answered.
He also gets Dean to admit he's having hallucinations. On the car ride there, Sam wants to have a talk, but Dean puts on "Wanted Dead or Alive" instead, creating one last brotherly bonding moment by both yelling the song obnoxiously out of tune.
'You guys are so bad at singing.' Mary said, with a sad smile.
Dean turns sad at the end, realising how bittersweet the moment is.
Sam and Dean both look away and their parents look at them worriedly.
They get pulled over by a cop because the Impala has a busted tail light. Dean attacks the officer and stabs him with Ruby's knife, revealing that the cop was really a demon.
'That was lucky. If Dean hadn't seen that then you might not have known.' Mary realised.
Dean confesses he saw his real face under the human face.
'Demon's real faces are gross.' Dean added.
While hiding the cop car, Bobby says that what Dean is seeing is normal for someone facing Hell soon, and that it will come in handy during their attack on Lilith. Sure enough, they arrive and Dean points out that the little girl is Lilith and the neighbourhood is loaded with demons.
'Who'd have thought going to Hell would be useful for something.' Dean said, with a smirk.
They take out a couple of the demons with Ruby's knife, while Bobby blesses a well with a rosary.
'That's smart.' Jo commented.
Ruby catches up with them, and Dean is disgusted by her "real" face. They are surrounded by demons and run for the house just in time for Bobby to turn on the sprinklers, which spray out holy water, stopping the demons at the edge of the lawn.
'We should do that more often.' Sam commented.
They enter the house and Dean takes the father to safety (grandpa was killed earlier for asking help from the neighbor), while Ruby and Sam go after Lilith.
'Why haven't you killed her already?' John questioned.
'Cuz Sam has a crush on her.' Dean said, with a smile.
'Shut up.' Sam muttered.
Ruby goes into one room, while Sam finds the girl and her mother in the bedroom. The mom begs Sam to kill the girl but he hesitates.
'Poor girl.' Mary said, sympathetically.
Just before he tries to stab her, Dean stops him and tells him Lilith isn't in her anymore.
Mary, John and Jo both breathed a sigh of relief.
Dean sends the family off to safety in the basement, while Sam tells Ruby he's ready to try it her way.
John and Mary looked at Dean quizzically.
She tells him it's too late, and Dean stops him, telling Sam that he will let him go to Hell.
'What?' Mary asked, looking confused.
'There was no way to get out of it.' Dean replied.
Sam tearfully asks what he's supposed to do, and Dean tells him to "keep fighting, take care of my wheels, remember what Dad taught you, and remember what I taught you."
Mary and John smiled, sadly.
The clock strikes midnight and Dean awaits his fate while tears run from Sam's eyes. Dean hears the hell hounds, and the three of them run into the office. Sam and Ruby barricade the doors while Dean puts down goofer dust along the doorway and windows.
'There was literally no way of getting out of it at this point.' Dean muttered.
Ruby demands the knife from Sam, and Dean realises it isn't Ruby. She pins Sam against the wall and Dean against the desk, and her white eyes show she's really Lilith. Sam asks where Ruby is, and Lilith says she sent her far away.
'She must be a really powerful demon to be able to do that.' John realised.
She goes over to Sam and kisses him, while he tries to give himself up for Dean. Lilith won't agree since Sam can't offer her anything she wants.
'Why are you two always trying to sacrifice yourselves for each other?' John asked, with a fond smile.
Dean asks her if her plan is to drag him to Hell, kill Sam, and become "Queen Bitch," but she won't answer to "puppy chow" and opens the door, letting the hell hound in.
Sam glances away, unwilling to watch his brother die again.
Dean is dragged from the table and mauled to death in horrific fashion, while Sam watches in horror, screaming at Lilith to stop it. After Dean dies, Lilith with delight, sends her white light of doom in Sam's direction, ready to kill him next.
John and Mary gasp, believing that both their sons were going to die.
The white light dissipates, and slowly terror washes over Lilith. Sam is crouched down in the corner unharmed and realises that she no longer has a hold on him. He grabs the knife and goes to stab her, but she exits Ruby's body in a cloud of black smoke.
'Of course she has to have some intelligence as well.' John sighed.
Sam looks down to see the bodies of Ruby and Dean, and begins weeping. He kneels down and cradles Dean's head in his hand, crying inconsolably over his dead brother.
Mary wipes away a tear and sniffs.
'So how the hell did you get out of that one?' John asked, incredulously.
The camera pans through Dean's eye to show dark clouds, lightning, cables strung everywhere, and in the middle of it, Dean hanging from chains with meat hooks through his shoulders and side. He's screaming for Sam as the scene fades to black.
Dean flinched at the memory.