Sam is about to graduate from college and has an interview set up to join one of the most prestigious law schools in the country. His brother Dean, whom he has not seen since he went to college, shows up in the middle of the night and tells him their father is missing while on a hunting trip. Leaving his girlfriend behind to find their dad, Sam joins Dean in an effort to find their father in a little town called Jericho, where unmarried men disappear without a trace.
Sam is about to graduate from college and has an interview set up to join one of the most prestigious law schools in the country. His brother Dean, whom he has not seen since he went to college, shows up in the middle of the night and tells him their father is missing while on a hunting trip. Leaving his girlfriend behind to find their dad, Sam joins Dean in an effort to find their father in a little town called Jericho, where unmarried men disappear without a trace.
While going through the newspaper, Dean comes across a mysterious drowning victim. Upon further research they soon discover more people who have drowned in the same lake, but their bodies were never found. When the boys show up in town they befriend a boy whose father has drowned. The brothers come to believe the lake is haunted by a spirit.
Sam’s friend, Zach, is accused of murder. Sam offers to help out by checking up on his sister, Rebecca. Rebecca claims her brother could not have committed the murder because he was with her at the time of the murder. But all the physical evidence points to Zach being at the scene of the crime. Could Zach have been at two places at the same time?
Sam and Dean help a girl whose date became a victim of the "Hook Man," a famous urban legend that turns out to be real, in a small college town somewhere in Iowa. In order to save her and her father, the local minister, the brothers have to find the ghost's bones so they can destroy them. One tiny problem... they're in an unmarked grave.
When Dean is accidentally electrocuted fighting a monster, he permanently damages his heart. When he's diagnosed as only having a month, at most, to live, Sam searches for a means to save him and finds Roy Le Grange, a faith healer who may actually be the real deal. After Le Grange heals Dean, the brothers discover that Le Grange is using black magic to bind a "Reaper" to do his bidding... and each healing comes with a terrible price.
Bela gets in the way yet again as Sam and Dean are investigating multiple victims who drowned even though they were nowhere near water. Sam and Dean make the creepy discovery that the victims all saw a ghost ship right before dying. They tell Bela to stay away, but she's not so willing to leave, as someone's paying her a lot to solve the same case Sam and Dean are investigating.
Sam and Dean investigate a series of odd murders that strangely resemble fairytales and urban legends. The brothers track down an 11-year-old boy named Jesse and realize that whatever Jesse believes is coming true. Castiel tells Sam and Dean that Jesse is a serious threat and needs to be eliminated.
Sam and Dean discover a witch is running a high-stakes poker game where the currency is life years vs. money. Bobby sees the game as a chance to get out of the wheelchair and bets 25 years, but loses. As Bobby begins to age rapidly, Dean steps in to save him but also ends up turning into an old man, leaving Sam holding the bag for their survival.
When Sam and Dean find themselves living their lives on what appear to be TV shows, it makes for a whole new style of reality television and they wonder if the Trickster is to blame. From a sitcom to a soapy hospital drama to a Japanese game show to a crime procedural, each new experience they encounter is more bizarre than the next and they want out. But is the Trickster really the mastermind behind the madness?
A former hunter named Martin, who is currently institutionalized, calls Sam and Dean for help investigating a case in the mental hospital. The brothers get themselves admitted as patients to check out the mysterious monster that is attacking the patients, but their incarceration pushes both to the breaking point as they unleash their inner demons against each other.
Gary, a teenage nerd, conjures up a body-switching spell and changes bodies with Sam. Thrilled by his new handsome and built body, Gary (now Sam) investigates a case with Dean and takes advantage of his good looks and age by hitting on women and getting drunk. Meanwhile, Sam is stuck in Gary's teenage body, dealing with intrusive parents and high school.
The angels send Anna back in time to kill John and Mary Winchester before they can conceive Sam knowing that if Sam was never born then Lucifer won't be able to use him as his vessel. Castiel sends Sam and Dean back to 1978 so they can stop Anna, and the two brothers are reunited with their parents. Mary recognizes Dean as a hunter since he visited her in the past once before but tries to keep the truth from John.
Sam and Dean investigate Bobby's home town where the dead are rising from the grave but instead of attacking humans, they are happily reuniting with their families. The brothers turn to Bobby for help but he tells them not to worry about it and to leave town. Suspicious, Dean investigates and comes face to face with Bobby's dead wife, who has no memory of what happened to her. Once the zombies start turning evil, the boys tell Bobby he has to kill his wife but he refuses.
Ambushed by angry hunters, Sam and Dean are shot and killed and sent to Heaven. Castiel warns Dean that Zachariah is looking for them in Heaven so they need to lay low while searching for an angel named Joshua who can help them since he talks directly to God. While searching for Joshua, the brothers run into some old friends and family members.
Sam and Dean are outnumbered by demons, but are saved at the last minute by Rob and his townspeople, who are aware of the Apocalypse, and have been training to fight and kill demons. The small town is very religious and Sam and Dean meet Pastor Gideon, who introduces them to his daughter Leah, whom he claims is a prophet. Leah tells the townspeople they must obey her orders if they want a spot in Heaven but when she starts turning the townspeople against each other in the name of the Lord, the brothers realize they must kill her.
Sam and Dean are kidnapped by a group of gods, including Kali, Ganesh, and Baldur and held hostage in a small hotel. The gods want to use Sam and Dean as bargaining chips to stop the Apocalypse, but Gabriel shows up and warns them that if Lucifer finds them he will kill them all. Unfortunately, one of the gods turns on the rest and Lucifer appears.
The demon Crowley tells Sam and Dean he can help them find the remaining Horsemen rings so they can trap Lucifer. The brothers are doubtful until Crowley leads them to Brady, the Handler for Pestilence and Death. However, Brady refuses to give up their locations and sets Pestilence after the Winchesters.
Crowley tells Bobby he will give him the location of Death, the fourth horseman, in exchange for his soul. Knowing Sam and Dean need that fourth ring to stop the Apocalypse, Bobby reluctantly agrees. Sam and Dean confront Pestilence, but he unleashes a deadly virus upon them, so Castiel must intervene on their behalf. Dean has a meeting with Death to discuss Lucifer, and an unholy alliance is formed at a very high price for Dean.
Sam investigates a case about missing babies whose parents are being murdered. At one of the crime scenes, he discovers a baby that was left behind and calls Dean for help. Reluctant to leave Lisa and Ben, Dean finally agrees to meet Sam and surprises his brother with how parental he has become. The brothers take the baby to Samuel, who decides to raise it as a hunter, which infuriates Dean. However, before they can decide the baby's future, a shape-shifter breaks in and attempts to kidnap the baby.
Sam and Dean call Castiel for help when they investigate a case about several dead police officers who seem to have been killed by the plagues of Egypt. Castiel confirms the staff of Moses was used to kill the cops and tells Sam and Dean that Heaven is in a state of chaos and God's weapons have been stolen. The three head off to find the thief and come face to face with an old enemy.
After a group of young girls go missing Sam and Dean realize that a group of vampires have taken up residence in the small town. After a fight with two of the blood-suckers, Dean is bitten and turns into a vampire. Samuel tells Dean he can change him back but he’d have to get the blood of the vampire who turned him. Dean infiltrates the nest and runs into the Alpha...
Sam and Dean investigate a series of suicides and discover the victims were being told brutal truths that drove them crazy. They find out someone is invoking the Goddess of Truth, Veritas, forcing people to be cruelly honest against their will and Dean is the next victim. Dean is forced to tell Sam the truth about how he feels about his return from Hell.
While Sam and Dean are investigating a UFO sighting, Dean is abducted from a crop circle. However, when he awakens, he discovers he isn't dealing with aliens, but fairies! Unfortunately, only Dean can see the fairy that keeps attacking him which makes tracing and stopping them difficult. The brothers become even more perplexed when Sam's investigation leads them to a world full of elves, gnomes and a leprechaun.
Dean seeks out Death to help get Sam's soul back. Death tells Dean he will help Sam if Dean will agree to act as Death for 24 hours. Meanwhile, Sam decides he doesn't want his soul back and asks Balthazar for a protective spell to keep his soul out of his body. Balthazar tells Sam he needs the blood of his father for the spell to work and since John Winchester is dead, Sam decides Bobby is the next best thing.
Dean and Bobby anxiously wait for Sam to wake up to see if Death was able to restore his soul without causing Sam to lose his mind. Meanwhile, Dean and Bobby investigate a disappearance of virgins and discover dragons are behind the kidnappings. Bobby sends Dean to a doctor who owns the only weapon in the world that can slay a dragon, but Dean must prove himself worthy enough to take it
Sam starts to have flashbacks to a case he worked on with Samuel before he reconnected with Dean. Sam receives a mysterious text with coordinates to a small town, so the brothers decide to investigate. Dean is surprised when the townspeople start telling him some of the things Sam did while he lived there.
Ben calls Dean and tells him Lisa is in trouble. Dean leaves Sam to investigate a case alone and rushes home to rescue Lisa, however, he’s not prepared for what meets him at the door. Meanwhile, Sam discovers the men that were murdered were all a part of a cruel practical joke played on a female co-worker who went missing.
Eve, the Mother of All, unleashes a new monster upon the world: a black worm-slug that can enter the brain and force people to kill. Sam and Dean join forces with Bobby and Rufus and track it to a cannery, only to discover that Gwen and Samuel are also there looking for the monster... and none of them know who the monster is inside.
While searching for a way to defeat Eve, Dean stumbles upon Samuel Colt’s journal in the Campbell library. Realizing Samuel might have the answer to their problems, Sam and Dean ask Castiel to send them back in time so they can meet the man himself. While Sam is a bit reluctant to time travel, Dean is beside himself with excitement to return to the Wild, Wild West.
Castiel doesn't kill Sam, Dean and Bobby but warns them not to interfere in his business. Assuming his new role as God, Castiel sets out to right some of the wrongs in the world. Dean decides they should bind Death and order him to stop Castiel, but the former angel is one step ahead of them, leaving Dean to face a very angry Death. Meanwhile Sam struggles to deal with the broken wall in his head.
Sam and Dean investigate a string of gruesome murders and discover the Egyptian god Osiris is behind the deaths. The vengeful god is putting people on trial for their past mistakes and killing them if found guilty. Osiris hones in on Dean’s guilt and decides he’s the next to stand trial. Sam steps in as Dean’s lawyer, but both brothers are unprepared when Osiris calls an unexpected witness Jo.
Sam and Dean are once again on the FBI’s “Most Wanted” list when two Leviathans clone the brothers and go on a killing spree. The subject of a nationwide manhunt, Sam and Dean need to drop off the grid so Bobby sends them to Frank Deveraux, a quirky surveillance expert, for help. Meanwhile, Bobby continues to search for a way to kill the Levianthans, or at least slow them down, so the real Winchesters can stop their evil doppelgangers.
Sam and Dean investigate the gruesome murders of resident mediums in Lily Dale, the most “psychic” town in America. They discover that an angry spirit is killing off the psychics one by one, but in a town full of people who claim to be summoning spirits, they have a little trouble identifying the medium controlling the ghost.
Sam, Dean, and Bobby become actual hunters, in the true sense of the word, when they set up camp in a New Jersey state park to track a creature that has been attacking people in the woods. The townsfolk claim it is the real Jersey Devil. Meanwhile, Dean is beyond thrilled to find a Biggerson’s restaurant in town, but is devastated when he discovers the restaurant’s special sandwich seems to be making people crazy.
Still reeling after what happened to Bobby, Dean becomes dangerously obsessed over finding a way to take down Dick Roman. Meanwhile, Sam decides to help a teenage girl look for her father, a hunter who has gone missing. Sam traces his last steps to a truck stop where the help turns out not to be so friendly.
Sam and Dean investigate a case where the victims' hands and feet have been severed and each have been branded with a strange symbol. While Sam does some research at a local university, Dean heads to one of his favorite places to investigate - the town bar. Dean strikes up a conversation with a local named Lydia, and the two go back to her place. Sam discovers the symbol on the bodies is a sign of Amazon warriors.
Four years ago, Sam and Dean helped a woman named Nora exorcise a demon that was systematically killing women in a small town. They managed to save a postal worker, Jeffrey, while vanquishing the demon, but now it seems the black-eyed monster has reared his ugly head and returned for a second helping. The brothers visit Jeffrey, who has been locked in a psych ward since the incident, to see if he can remember any of the demon’s plans while he was possessed.
Dick Roman acquires Frank's hard drive that contains sensitive information about the Winchesters and gives it to an unsuspecting brilliant hacker named Charlie telling her she has 3 days to crack the encryptionl or she is fired. Sam and Dean are tipped off that Dick has the hard drive and race to get to Charlie before she breaks the code. Meanwhile, Bobby tries to help the brothers, but his rage towards Dick for killing him starts to get in the way.
Meg calls Dean and Sam and tells them Castiel is awake and talking. Meanwhile, a teenager named Kevin gets hit by a bolt of lightening and is turned into a reluctant prophet. Sam and Dean believe Kevin holds the key to defeating the Leviathans but must fight off two Archangels who want him for their own purposes.
In order to defeat Dick Roman and the Leviathans, Sam and Dean must locate three key items. Castiel helps with one but for the last objects, the Winchesters must face two of their strongest opponents - an Alpha and Crowley. Meanwhile, Bobby tries out a new ghost trick that ends up being very dangerous.
Dean and Sam prepare for battle with Dick Roman. Dick's in the final phase of his plan and the Winchesters must team up with Castiel, Bobby, Meg and Kevin, the prophet, to stop him. However, Dick is one of the smartest enemies they've ever faced so it's a mind game to see who can keep the upper hand.
One Year Later Dean’s escaped from Purgatory, though Castiel is nowhere to be found. However, Dean isn’t alone. He’s returned with a mysterious comrade-in-arms whose reason for escape is perhaps more than Dean bargained for. Meanwhile, Sam finds himself reconciling the life he discovered while Dean was gone with Dean’s sudden reappearance. As the boys struggle with their unexpected reunion, they make a shocking discovery that could lead them on a deeply personal mission to settle old scores. If only they could agree – is this a “family business” or isn’t it?.
Kevin talks Sam and Dean into checking in on his mother. When they arrive, they see that Crowley has surrounded her with demons so they rescue her and take her along on their quest to find the tablet. However, they soon discover Kevin wasn’t kidding when he said his mother was a strong-willed woman after she tries to take on Crowley.
Sam and Dean investigate a bizarre murder in a college town. Close on the tail of their suspect, they bust into an apartment to find two dead bodies and a laptop cued up to some disturbing video footage. The footage begins with Brian, Mike and Kate hearing about an unusual animal attack in their town and the rest of the story is revealed through their eyes. Sam and Dean become unknowing participants in a unique student film.
After Benny gets brutally beat up by some vampires, he calls Dean for help. Dean abruptly packs up and tells a confused Sam that he’s taking a "personal day." Benny confesses that he’s going after his Maker so Dean offers to help, flashing back on the many times Benny helped him and Castiel in Purgatory. Meanwhile, Sam uses his solo time to reflect on the life he left behind with Amelia. However, when things go bad for Dean and Benny, Dean calls Sam for help, which makes everything very complicated.
Sam and Dean investigate a murder and find Garth is already on the case. Dean is not happy to learn that Garth has assumed Bobby’s duties, but Garth points out that both Sam and Dean have been missing for the last year and someone needed to do it. They guys discover an "avenging ghost" is responsible for the murders and they need to find the source before the killings starts again.
Castiel tells Sam and Dean that he’s decided to become a hunter like them. Sam and Dean aren’t sold on the idea but agree to investigate a case Cas found where a man’s heart literally burst through his chest. The guys discover there has been more than one odd murder in the small town and all of them resemble cartoon deaths.
Sam asks a hunter named Martin to keep an eye on Benny without telling Dean. However, when Martin tells Sam there was a vampire kill and he thinks Benny is responsible, Dean defends his friend. When Martin decides to take things into his own hands, things get messy and Dean is forced to make a very hard decision.
Sam and Dean investigate the mysterious deaths of two LARPers who were playing a game entitled Moondoor. The guys are thrilled to discover the Queen of Moondoor is none other than Charlie. The three learn that a fairy has been commandeered to harm people and the only way to stop her is to find her master.
Sam and Dean are stunned when a man who claims to be Henry Winchester, their grandfather, suddenly appears in their hotel room demanding to know where he can find John Winchester. Henry has time-traveled to stop a demon named Abbadon and was looking for John’s help. Through Henry, Sam and Dean learn more about their father and the Winchester blood line.
Sam and Dean investigate the death of Rabbi Bass, who spontaneously combusted. The case becomes ever more confusing when they learn that the Rabbi was researching Nazi Necromancers. Sam and Dean are attacked by a Golem who turns out to belong to the Rabbi’s grandson, Aaron. The key to the case lies with the Golem but Aaron doesn’t know how to control him, which leaves everyone in danger.
A police officer named James, who turned to witchcraft after working a case with Sam and Dean, is plagued by nightmares in which he murders innocent people. However, when the murders actually happen, Sam and Dean are called in by James’s "familiar" to help -- but the brothers aren’t sure they want to save a witch.
Castiel reappears in Sam and Dean’s life and tells them Crowley has unleashed several demons into a small town. The demons are looking for Lucifer’s Crypt, which holds a valuable asset, but Castiel lies to Sam and Dean about what it is. While interrogating a demon, the three discover Crowley has been torturing Meg, who knows the exact location of the crypt. Sam and Meg fight to hold Crowley off while Dean and Castiel go in search of the crypt.
Sam and Dean investigate some recent vampire kills and are surprised to learn Krissy Chambers is involved. They find Krissy and learn her father was killed and she’s been taken in by a man named Victor, who has taken in a group of orphan kids to teach them how to hunt. Victor is helping the teenagers find the vampires who took their parents so they can get revenge. Sam is intrigued by Victor’s method of giving the teenagers a home life as well as a hunting life, but Dean is suspicious of Victor’s motives.
Sam and Dean respond to a call from Kevin, who is terrified after hearing Crowley's voice in his head. After hearing Kevin's news, Sam and Dean team up with a reaper named Ajay, who helps them deal with the second trial from the Tablet. Meanwhile, Dean receives a visit from Naomi and realizes he must find Benny and ask for a huge favor.
Concerned about the physical toll the second trial took on Sam, Dean benches his brother from hunting until he heals up. So, when geektastic hacker Charlie stumbles upon a case and finds the boys, Dean decides it's time to teach Charlie how to be a hunter-in-training. While happy to see "her highness," the boys suspect Charlie is hiding something; a secret that could get her killed.
When Sam and Dean receive a distressing video message from Kevin Tran, they set about trying to uncover the Third Trial. The boys make a discovery that sends them to a casino in Colorado, to find a mysterious recluse who may be able to fill in the holes in Kevin’s research. Meanwhile, Crowley is on a winning streak. Castiel tries to elude Naomi and the angels hunting him.
Dean is frantic after Sam collapses and the doctor tells Dean his brother won't make it. Desperate, Dean sends out an all points bulletin via prayer to every angel in the area, asking them to help his brother. In exchange, Dean will owe that angel a favor. Numerous angry angels race to find and kill Dean, but one, Ezekiel, gets to him first. Meanwhile, Sam fights for his life and must face some familiar demons to do so. Castiel struggles to survive without powers.
While investigating two bizarre murders, Sam and Dean realize there is an eyewitness to both gruesome deaths - a German Sheppard. Anxious to find out if they are dealing with a witch, a skinwalker or other supernatural monster, the guys look up a spell that could let Dean "communicate" with the dog. Unfortunately, the spell comes with side effects that no one saw coming.
Castiel gets a job at a Gas-N-Sip and actually starts to enjoy life as a human. A headline in the local newspaper about some disappearances in the area catches his eye, so he calls Dean to help him investigate the case. Dean knows he needs to keep Sam/Ezekiel away from Castiel, so he tells Sam that he and Kevin need to stay and work with Crowley to decipher the tablet. Crowley agrees to help Sam and Kevin but in return he wants one phone call to hell.
Dean gets a call from an old friend named Sonny asking for help with a ghost. Sonny runs a home for delinquent boys, and Dean was sent there for stealing food when he was younger. Sam is stunned he never knew this about his brother and asks for more information, but Dean dodges his questions. Another murder occurs while Sam and Dean are at the house, so they scramble to find the culprit before anyone else dies. Meanwhile, Dean looks up an old girlfriend and recalls his time at the house.
Sheriff Mills calls Sam and Dean for help investigating multiple murders in her small town. Discovering all four victims belonged to the same church chastity group, Sam and Dean decide to infiltrate by joining the group themselves. When Dean disappears, Sam and Sheriff Mills realize whatever they are hunting has taken Dean too and team up to rescue him.
Dean is devastated after Kevin's death and vows to find the angel that killed him, not only to free Sam, but to seek revenge. Castiel arrives at the bunker and suggests they try to separate Sam's brain from the angel's so they can talk to Sam and have him expel Gadreel. However, there's one small problem: the only person who knows how to do that is Crowley.
Looking to reclaim his place as King of Hell, Crowley asks Dean for help finding "The First Blade," the only blade that can kill Abbadon. Knowing he owes Crowley a favor for helping Sam, and also wanting Abaddon dead himself, Dean reluctantly agrees and the two set off on a road trip. However, Dean and Crowley are completely unprepared when they find out who has the blade - Cain, the first son. Meanwhile, Sam is back at the bunker with Castiel who notices there is some leftover grace inside Sam. If they can extract it, they can use the grace to track Gadreel. The only problem is the procedure may do permanent damage to Sam.
After finding out that Garth is in the hospital, Sam and Dean go to check on him. Still carrying the guilt over Kevin, Dean lays into Garth about disappearing and demands to know where he's been. Garth makes an excuse and then hightails it away from the guys. Confused as to why Garth would run from them, Sam and Dean do some investigating and are stunned by what they find.
Sam and Dean investigate recent murders where the victims were hundreds of pounds lighter after their deaths. Suspecting witches, the two go undercover at a fancy day spa that all of the victims had attended for weight loss. While Sam is hired as a fitness instructor, Dean takes kitchen duty. After Dean swipes some tainted food and passes out, the guys realize someone is drugging the guests and literally sucking all of the fat out of them until they die.
A teenage girl is killed and the final selfie she took before the attack shows a ghostly figure in the background. Looking for something to keep them busy, Dean and Sam head to Washington to find the ghost. While the two interview the girl’s mother, Betty, they are surprised when she starts talking about cold spots and fritzing. When they ask her about bringing up paranormal signs, Betty replies that the "supernaturalists" who called earlier brought it up. Enter Harry and Ed, the famous supernaturalists.
Dean is frustrated when he can’t reach Crowley, who has promised to find The First Blade. When Crowley finally calls Sam and Dean, he tells them he fell off the wagon and has been injecting human blood and needs their help. To make matters worse, he had a demon helping him find blood, but she sold him out and told Abaddon that he and the Winchesters were searching for The First Blade. The brothers need to find the blade before Abaddon does, so they enlist the help of a former member of the Men of Letters.
Dean struggles with the after effects of the Mark of Cain. Meanwhile, Sam hears about a case where straight-laced people are turning into violent murderers. Sam suspects possession and suggests to Dean that they investigate, but Dean tells him to go without him. While interviewing the local townsfolk, Sam meets an elderly woman named Julia, who tells him the Men of Letters came to town in 1958. Josie tells Sam the story of a young man named Henry Winchester and his female companion, Josie Sands. While Sam is away, Crowley tests Dean.
Sheriff Mills calls Sam and Dean after she kills a vampire who attacked a prisoner named Annie. They discover Annie was kidnapped by a family of vampires who use her as bait to lure in humans they can then feed on. Sheriff Mills tries to rescue Annie from her captors, but finds out the hard way that family always comes first.
Sam and Dean investigate a case in Chicago, where they discover that various mafia-esque monster families are, unknown to humans, running the underbelly of Chicago. One is a family of shapeshifters run by Margo Lassiter, whose leadership is thrown into question when her brother David returns home. The other reigning family in town is made up of werewolves, lead by Julian Duval. While in Chicago, Sam and Dean meet Ennis, a man with a personal vendetta against the monsters. The Winchesters warn Ennis about heading into the hunter lifestyle, but Ennis refuses to listen and starts down a dangerous path.
Castiel captures one of Metatron’s angels and asks Sam and Dean for help with the interrogation. Dean eagerly accepts, which doesn’t go unnoticed by Sam. Meanwhile, Abaddon demands Crowley help her kill Sam and Dean. When he refuses, she reveals her shocking bargaining chip. Also, Castiel sets a meeting with Gadreel.
After a massive attack on the angels, Castiel calls Sam and Dean for help. As they leave, Dean’s eagerness to bring the First Blade doesn’t go unnoticed by Sam who is worried about the cost to his brother whenever he uses the Blade. Meanwhile, Castiel is shocked when he learns the angel that caused the attack was one of his followers and did it in his name. Dean discovers there is a conspiracy amongst Castiel’s angel followers and at the heart of it is Tessa, the Reaper.
This one-hour special takes a behind-the-scenes look at the past nine seasons of the hit drama about the thrilling and terrifying journey of the Winchester Brothers. Interviews include series stars Jared Padalecki, Jensen Ackles, Misha Collins and Mark Sheppard, along with series creator Eric Kripke and executive producers Robert Singer and Jeremy Carver. The stars and producers share stories and clips of their favorite memories, monsters, demons and angels from seasons one through nine and tease the upcoming action fans can expect in season ten.
Crowley notices Dean is becoming more and more aggressive. Dean tells him that’s the side effect of being a demon, but Crowley knows it’s something more - the Mark of Cain needs to be fed. Meanwhile, Sam is captured by Cole, an angry man who blames Dean for his father’s death years ago and wants revenge. Cole tortures Sam, hoping he’ll tell him where Dean is hiding. Hannah sees how weak Castiel is becoming as his grace continues to fade, so she makes a bold choice and asks Metatron for help.
Dean is surprised when he checks Bobby’s cell phone and hears a message that says Bobby or his next of kin have been named as a beneficiary in an heiress’ will. Hoping that means extra money, Dean talks Sam into hitting the road to claim their fortune. However, what they encounter at the house is far from a treasure chest.
Sam and Dean stumble upon a demon who is running from Crowley. Before they have a chance to shut him down, Rowena steps in and takes things into her own hands. Realizing Rowena is trying to recruit and train followers in the art of witchcraft, Sam and Dean come up with a plan to catch her before she can do much damage. Meanwhile, Hannah runs into a blast from her vessel’s past, which complicates things for her and Castiel.
Jody Mills reluctantly attends a mandatory sheriff’s retreat and is partnered with an overeager sheriff named Donna who wants to bond. Just as Jody thinks things can’t get any worse, a body with just strings of meat and skin hanging off the bones is discovered. While the local sheriffs blame an animal attack, Jody knows better and calls Sam and Dean.
After the massacre at the ranch, Dean, Sam and Castiel double their efforts to find a cure for the Mark of Cain but there is nothing in the lore that can help them. Desperate, Castiel comes up with an idea that Sam deems the "single worst idea I've ever heard." Meanwhile, Rowena continues to plot against Crowley, and Castiel tries to mend his relationship with Claire who is plotting revenge against Dean for killing her friend.
Sam is scanning the internet for suspicious paranormal activity and comes across a video of Charlie beating up a district attorney. Dean suspects she’s back from Oz and hunting on her own, assuming the district attorney must have been a demon. When they do find Charlie, they are shocked when she tells them why she really came back from Oz.
Looking to get Dean out of the bunker, Sam finds a case for him and Dean to investigate – people are disappearing into thin air with only their clothes left behind. Sam and Dean suspect fairies or angels, but the truth turns out to be much more shocking – Hansel, from Hansel and Gretel lore, is kidnapping people and turning them into their younger selves to placate the evil witch. Unfortunately, Dean finds this information out the hard way after he becomes Hansel’s next victim and reverts to his 14 year old self.
A ghost starts killing people through various electronic devices. Sam and Dean discover who was killed and why this ghost is seeking revenge on a group of college students but what they can’t figure out is how he’s doing it. With three dead, the brothers must stop the ghost before he claims his next victim.
Despite Dean's directive to forget about looking for a cure for the Mark of Cain, Sam continues to do research. Dean suspects Sam is hiding something but decides to focus on a new murder case where they run into Cole. The three team up and learn a Khan worm is infecting men and turning them into murderers. Unfortunately, the worm makes its way into Cole.
Sam and Dean investigate a string of suicides committed by people with little in common other than the identical, grisly method of death – slow, self-administered disembowlment. All of the victims were members of a Catholic church and had recently given confession, leading the brothers to suspect the priest is somehow involved. Meanwhile, when Crowley captures Olivette, the leader of the Grand Coven, Rowena pleads her case to be allowed to practice magic freely again.
Charlie calls Sam and Dean to tell them she found the Book of the Dead which could help remove the Mark of Cain. The Winchesters race to her after she tells them she’s been shot by a man named Jacob Styne who says the book belongs to his family and he won’t rest until he gets it back. Castiel and Metatron take a road trip to find Castiel’s grace but they hit a couple road bumps along the way.
Sam learns that former Men of Letters, Magnus, once built a magical box and Sam sets out to find it in the hopes it can cure Dean of the Mark of Cain. However, what he’s not prepared for, is the deadly alarm system Magnus set up on the box. When Sam opens the box, he puts both his and Dean’s life in danger.
When Claire Novak gets a lead on her mother, Amelia, who has been missing for years, Castiel asks Sam and Dean to help her. Castiel feels guilty for what he did to the Novak family and wants to make amends by reuniting Claire with her mom. However, when they find out what took Amelia, they realize there is a chance Claire may not get her happy ending.
Dean and Sam investigate a bizarre murder and realize the killer bears the same tattoo as those from the Styne family. Eldon Styne attacks Dean and a brutal fight ensues. Meanwhile, Castiel acts as referee when Charlie and Rowena are forced to work together on the Book of the Damned. Crowley discovers his mother is missing and knows she's up to something so he turns to an old enemy for help.
Dean helps Jenna, the deputy he met after the Darkness fell, get back home safely and then sets off to help Sam deal with a town infected by a mysterious and deadly gas. However, when Jenna falls into dangerous hands, she calls Dean for help and Sam tells him to go back to her. Unfortunately for Sam, he isn't able to handle the townspeople turned monsters as easily as he thought.
Sam and Dean drop in on Jody Mills, Claire and Alex after receiving a panicked phone call from Claire. She believes the recent murders in town are supernatural and wants the boys’ help. However, Sheriff Mills tells Sam and Dean that Claire has been getting into trouble lately as she’s been attacking normal people and accusing them of being monsters.
Hoping to find a weapon powerful enough to defeat Amara, Dean convinces “Castiel,” who is still Lucifer, to send him back in time to the last reported sighting of the Hand of God. Lucifer sees the potential in getting his hands on this weapon so goes along as Castiel and sends Dean to 1944 to the fated submarine mission that sunk the Hand of God. Meanwhile, continuing his charade with Sam while they wait for Dean’s return, Lucifer plans his next move.
Dean sees an obituary notice for a wrestler he and Sam used to watch when they were kids. Deciding they need a break from tracking the Darkness, the brothers decide to attend the funeral to pay their respects. The funeral is full of wrestlers, including Shawn Harley, a hot shot new wrestler with a fiery temper who pushes everyone’s buttons, and veteran wrestler Gunner Lawless. Sam and Dean attend the next match to re-live one of their fondest childhood memories but when another wrestler turns up dead, play time quickly turns to work.
Amara unleashes a dark fog on a small town, causing everyone to go mad. Dean and Sam realize this is a stronger version of the original black vein virus Amara previously unleashed. They team up with the sheriff to protect the town but their old remedy no longer works. Meanwhile, Chuck returns with an interesting proposal.
When Sam and Dean look into a murder at a museum, they learn a ghost from a merchant ship that sunk in 1723 may be at the heart of the mystery. After realizing “The Star” was the same ship that Crowley’s son Gavin McLeod should have been aboard, they enlist help from Rowena to track Gavin down. Kelly Kline, still pregnant with Lucifer’s child, takes refuge with a demon after an angel attempts to kill her.
Sam and Dean are left to pick up the pieces after the loss of their mother, the demise of Crowley and the heartbreaking death of Castiel. Meanwhile the birth of Jack leaves the Winchester brothers with differing opinions on how to deal with a Nephilim. After being dragged into the breach, Mary must learn to survive Lucifer and an apocalyptic world.
Sam and Dean begin to explore what Jack is capable of doing with his powers. An unexpected visit from Donatello alerts the boys to the fact that Jack will need more protection than the Winchesters can provide. There is a new Prince of Hell in town, Asmodeus, and with Lucifer out of the picture, he sets his sights set on Jack.
When her friend is murdered by a wraith with a taste for psychics, Missouri enlists the help of Dean and Jody to protect her granddaughter, Patience, who has no idea she shares her grandmother’s trait and could be next on the wraith’s hit list. Meanwhile, Sam continues to work with Jack on learning how to control his powers.
When Sam and Dean go missing, Jody Mills calls Claire Novak, the rebellious rogue hunter, and tells her it is time to come home – they need to find the Winchesters. Claire returns and reunites with Alex Jones, who has stayed behind with Jody and tries to balance a “normal” life with being a part time hunter. While Jody is happy to have Claire home again, she’s plagued by Patience’s disturbing vision involving her adopted daughter. Claire and Alex search for Kaia Nieves, the dreamcatcher responsible for opening the rift that Sam and Dean went through, as she holds the key to their whereabouts. Jody calls her friend, Donna Hanscum, to round out the team and the women head off on the most important hunt of their lives.
Sam and Dean continue to collect the pieces necessary to open a rift to the other world in order to save their family. Their latest quest leads them to a Men of Letters bunker from the 1920s and a hungry God from another dimension. Meanwhile, Ketch makes a shocking decision about Gabriel after an unruly encounter with Asmodeus.
Sam enlists everyone’s help in trying to track down Dean, who can literally be anywhere. Meanwhile, Castiel may be in over his head after meeting up with an unreliable source. After being drained of his grace, Jack is adjusting to life as a human, learning new skills and figuring out how he fits in to this world of hunters.
Jared Padalecki, Jensen Ackles, Misha Collins, Alexander Calvert and co-showrunners Robert Singer and Andrew Dabb.