Mary Winchester carried her two young children down the hallway of their Lawrence, Kansas home. Dean, the oldest at four years old, clutched his sister's hand. The two year old Maria smiled at her big brother and buried her face into her mother's white nightgown.
"Come on, let's say good night to your brother," Mary said softly. She set Dean down on the carpet of the baby's room and she turned on the light. Dean rushes to the crib and looks down at the baby. Mary carries Maria over to the crib and looks down at her youngest son.
"Night, Sam," Dean says, and kisses him on the forehead.
"Nigh-nigh, Sammy," Maria manages to say, leaning over the crib while still in her mother's arms. Mary lets her daughter kiss the baby on the forehead.
"Goodnight, love," Mary says as she pushes Sam's hair back out of his face. She kisses his forehead as well.
"Hey, Dean. Hey, Maria," a man in the doorway greets.
"Daddy!" Dean exclaims, running into John Winchester's arms. Maria struggles in her mother's grasp. Mary places her daughter on the carpet, and Maria races into John's arms as well.
"So, what do you think? You think Sammy's ready to toss around a football yet?" John asked the two children in his arms.
"No, Daddy," Dean says, smiling at the thought of his baby brother playing football.
"Silly Daddy," Maria says, hugging John around the neck.
"No," John laughs, amused by his own joke.
"You got 'em?" Mary asks as she passes John, Dean, and Maria on her way out of Sam's nursery.
"I got 'em," John replies, hugging Dean and Maria closer. "Sweet dreams, Sam." He carries Dean and Maria to the door, switching off the light, then takes Dean and Maria into their shared bedroom to say goodnight.
Mary hears strange noises coming through the baby monitor. She stirs and turns on the light in her bedroom.
"John?" she asks. She's alone in her bedroom. She gets out of bed and walks down the hallway to Sam's nursery. The silhouette of a man is standing over Sam's crib. "John? Is he hungry?" The man turns his head.
"Shhh," he says.
"All right," Mary replies, heading back into the hallway. The light by the stairs is flickering and Mary taps on it until it stops. Lights flicker downstairs. She goes to investigate the source and finds a war movie on television and a sleeping John in the chair. The man upstairs was not her husband. Mary panics.
"Sammy! Sammy!" she screams. She enters the nursery and stops in the doorway. John, asleep downstairs, wakes up when he hears his wife scream.
"Mary?" he says, hurrying out of the chair and up the stairs to the nursery. "Mary!" he says again, bursting through the closed nursery door. "Mary," he says once more, as he scans the apparently empty room. He looks down at Sam and pushes the side of his crib down.
"Hey, Sammy. You okay?" John asks his youngest son. Something drips next to Sam. John reaches out and touches it. Two more drops land on the back of his hand. It's dark red, like blood. John looks up and sees a horrific sight: Mary sprawled across the ceiling, her stomach red with blood, struggling to breathe. John collapses to the floor of the nursery, staring at his wife pinned to the ceiling.
"No! Mary!" John exclaimed, just as Mary burst into flames, the fire from her body spreading across the ceiling of the nursery. John, horrified by the sight, is broken out of his trance by the sound of baby Sam crying. John lifts himself up and scoops Sam out of his crib, rushing out of the room. Dean and Maria are awake, investigating the source of the noises that woke them up. They stand in the hallway, hand in hand, as John comes rushing out of the nursery with Sam in his arms.
"Daddy!" Dean and Maria say in unison. John shoves Sam into Dean's arms.
"Take your brother and sister outside as fast as you can and don't look back! Now, Dean, go!" John says before turning back to the nursery. Dean does as he is told, carefully holding Sam and making sure Maria is close behind them.
"Mary! No!" John yells. The entire room is engulfed in flames. Mary can barely be seen through the inferno.
"It's okay, Sammy. Everything is going to be okay, Maria," Dean says as he and Maria run outside, Dean carrying baby Sam. They turn to look up at Sam's nursery window, which is gold from the flames inside. John runs outside, scoops Dean, Maria, and Sam into his arms and carries the three of them to a safe distance.
"I gotcha," he says as reassuringly as he can manage as fire explodes out of the nursery window. The Lawrence Fire Department arrives a few minutes later, followed by the police. An officer waves some of the Winchesters' neighbors back away from the blaze.
Across the street from their burning home, John, Dean, and Maria sit on the hood of John's 1967 Chevy Impala. Maria sitting between her father and Dean, who puts a reassuring hand around her back, her head on her father's arm. John holds baby Sam in his arms, staring at the remnants of the fire that was once their home.