Sam and Dean Winchester were trained by their father to hunt the creatures of the supernatural. Now, their father has mysteriously disappeared while hunting the demon that killed their mother, 22 years ago.

Sam and Dean make a stop at Blackwater Ridge and end up helping a young woman and her brother find their other brother, who mysteriously disappeared, while on a camping trip, in the woods.

Something in the lake of a small town is killing innocent people.

A friend of John's calls Sam and Dean for help about a strange recording on the black box of a crashed plane. They soon realize that the demon which caused the crash is picking off the crash's only seven survivors.

A game of Bloody Mary unleashes a ghost who lives in mirrors and kills by gouging out the eyes of her prey, Sam and Dean must find a way to stop her before she claims another victim.

A serial killer shape-shifter adopts the likeness of Sam's college buddy to commit a gruesome murder. When the brothers investigate, the being "borrows" Dean's form to continue the killing spree.

Sam and Dean investigate an age-old urban legend known only as the Hook-Man, the spirit of a 19th century pastor with a twisted sense of morals that is unknowingly being used as an innocent girl's attack dog.

Sam and Dean head to Oklahoma to investigate a recent spate of insect related deaths around a new housing development.

Following visionary Sam's recent nightmare about the former Winchester home in Lawrence, Kansas, where the present dwellers, Jenny from Wichita and mother to two small kids, are suspiciously accident-prone, Dean reluctantly accepts to drive there. Dean and Sam reassure Jenny but follow up on the kids fear of a flaming creature in the closet. They consult Missouri Moseley, their father John's old medium friend, and together with the spirit of Mary Winchester, confront an evil poltergeist, but a second ghost intervenes and someone hides behind Missouri.

While investigating a haunting in an abandoned asylum and rescuing two teenagers who ventured in, Sam and Dean become trapped with the spirits of those who had died in a riot decades ago, one of which was a doctor who causes extreme rage in his victims.

After arguing about the search for their father, Sam and Dean split ways - Sam to continue the search in California, Dean to hunt the mysterious disappearances of passing-through couples in Indiana.

After Dean is fatally injured on a case, Sam thinks he's found a cure in a preacher who performs miracles. However, after they discover that these miracles are not as 'holy' as advertised, the brothers race to stop them before another innocent life is sacrificed.

Dean is contacted by an ex-flame who asks him for help when black men in her hometown are being murdered by a driver-less racist truck.

When Sam's visions start happening while he's awake, he and Dean investigate the unusual murders he foretold only to find them all to be true. And that perhaps he's not the only one with special abilities.When visiting the Millers the boys go as priests.

After following a history of disappearances in Hibbing, Minnesota, Sam finds himself locked in a cage and Dean must team up with a by the book sheriff to find him......before the hunt begins.

While looking into a mysterious murder in Illinois, Sam and Dean come across Meg, an old 'friend' of Sam's, who may be far worse than they ever thought possible and who plans to use the brothers as bait to trap their father, John.

When a case of a seemingly average haunting begins to go haywire, Sam and Dean come to find that two bumbling, wanna-be paranormal investigators, Harry and Ed, are already on the case.

Dean gets a second chance to right a wrong from his past when the brothers get a mysterious tip from their father about a case they'd worked years ago, but left unfinished after Sam was nearly killed by the creature.

When two sets of owners of the same painting are brutally murdered, Sam and Dean investigate with the help of an auction house owner's daughter, all while Dean shamelessly tries to pair her with his little brother.

After Daniel Elkins, a vampire hunter and John's mentor, is murdered, Sam and Dean are surprised when John himself shows up to solve the case. John discovers the vampires have taken an antique gun, which has the power to kill all supernatural beings. The Winchester family sets out to retrieve the gun from the vampires so they can use it to kill the demon that took Sam and Dean's mother.

Meg turns to killing John's friends in order to get the Colt. Sam and Dean stakeout the Demon's next target; a family with a six month old baby showing signs of special abilities. John heads off alone to confront Meg.

Sam and Dean seek help from Bobby Singer, an old family friend in their mission to save their father from Meg. The brothers set a trap for Meg.

In the aftermath of the car crash, the surviving Winchesters go to the hospital, where one is stalked by a Reaper while another must consider sacrificing himself to save the others.

After the events at the hospital, the brothers have no idea where the demon that killed their mother is hiding. While biding their time trying to come up with an idea, they investigate murders committed by a killer clown.

Sam and Dean encounter a vampire hunter whose obsession may get them all killed.

Dean and Sam investigate the death of a young college student who died in a car accident, but whose grave is now surrounded by a circle of dead plants.

Sam and Dean meet Andy Gallagher, a slacker with psychic powers of persuasion. Once the brothers learn that Andy's family was visited by the Demon, Sam wonders if he could be one of the special children.

Sam and Dean meet up with America's first serial killer, while Jo lies to her mother about going to Vegas and joins Sam and Dean to help them on their hunt.

Dean has been framed for murder. Sam tries to find the one behind it.

The people of a small town have been selling their souls to a crossroad demon.

Sam has a vision of Dean shooting a defenseless man, and they go to the town of River Grove, where they find the townspeople have been possessed by a virus that makes them violent.

Sam meets a woman who shares his ability to have visions, and she warns him that she has seen the future where he dies in an explosion.

Sam and Dean investigate an Connecticut inn run by a single mother where mysterious deaths are taking place. They find evidence of Hoodoo, and try to figure out who is causing the chaos.

The Winchesters investigate a series of crimes where robbers with no criminal past commit suicide after the hold-ups.

An angel causes people to cheerfully go out to murder, and when the Winchesters investigate one of them falls under its sway.

Sam contacts Dean after being missing for a week. When they reunite, Dean finds Sam covered in blood and with no recollection of what happened.

The Winchester brothers seek the help of their family friend Bobby while investigating a series of unexplained happenings on a local college campus.

A fatal automobile accident from 1992 leaves an angry apparition haunting a remote stretch of highway, and Sam and Dean try to lay it to rest.

Sam and Dean investigate a brutal death and discover that the killer is a lycanthrope: a werewolf.

Sam and Dean discover that a group of ghosts are attempting to shut down production of a movie that they feel is mocking them.

Sam and Dean allow themselves to be arrested in order to investigate a series of murders inside a penitentiary. However things get complicated when FBI agent Henricksen shows up to take over their case.

Dean is attacked by a Djinn and finds himself in a new reality where his mother is still alive and a mysterious woman holds the key to everything.

Sam and other "special children" are abducted by the Yellow-Eyed Demon and taken to a ghost town, where the ultimate battle must start.

Dean hits an emotional rock bottom after a devastating personal loss. The Yellow Eyed Demon begins a calculated strategic move to unleash the armies of hell.

Seven demons, based on the Seven Deadly Sins, are released into the world and the brothers must combat them with the aid of a married Hunter couple.

A strange death reported in the newspaper prompts Dean and Sam to find Lisa Braeden, a woman Dean had a weekend fling with about 8.75 years ago, only to find she has a son turning 8. While investigating the death in the paper along with several other mysterious recent deaths, Sam and Dean find they are chasing a Changeling, who is replacing children with it's offspring. The mysterious blond woman is back, giving Sam a cryptic message that he should look into his mother's friends.

The Winchesters are called regarding a robbery of their father's storage unit, and track down the robbers to find the item stolen is a cursed rabbit's foot, which provides great luck until lost, and once lost the previous owner dies within a week. Sam picks up the foot and has great fortune, until it is pickpocketted away by the mercenary Bela. Dean must then get it back before Sam's bad luck gets him killed. To complicate the whole situation, Gordon, from his prison home, has convinced two other hunters that Sam is pure evil and must be killed.

The brothers investigate the death of a man who committed suicide in a church. However, Sam is forced to team up with an unexpected ally when Dean disappears with a female demon who is interested in him personally.

A young girl trapped in a coma by her wicked stepmother sets off a series of murders based on the fairy tales her father reads her. Meanwhile, Sam tries to get Dean out of his deal.

Sam and Dean investigate the mysterious demise of drowning victims who were nowhere near water at the time of their death. They learn that each of the victims saw a ghost ship before they died.

Gordon Walker is out of prison and out for blood, Sam's blood, and pays Bela to reveal their location. Meanwhile, the Winchesters are hot on the trail of a vampire named Dixon, who in turn has a beef with Gordon.

In this Christmas-themed episode, Sam and Dean follow the trail of an "anti-Santa" that abducts its victims by using their chimneys. Dean tries to get Sam to celebrate Christmas like they used to but Sam doesn't want to accept that it could be the last one they'll spend together.

The seemingly harmless practices of a group of neighborhood witches goes bad when one of them kills a woman. Ruby offers her assistance... but she has a few secrets of her own.

When Bobby Singer is discovered in a coma, Dean and Sam uncover a student who works through people's dreams to destroy them.

Sam relives the same day over and over, continually having to deal with Dean's death.

Sam and Dean are arrested by Agent Henriksen and thrown into a jail cell in Colorado just as an army of demons makes their first move under a new leader who wants Sam dead.

Sam and Dean inexplicably encounter the Hell Hounds while investigating a case that John failed to crack years earlier and become fixtures in their pilot for a reality show called Ghostfacers.

While hunting a creature that kills people by pretending to be their dead loved ones, Dean receives a call from John who says he has a way to get him out of his deal.

Sam and Dean discover a doctor who, back in 1816, became obsessed with finding the secret of eternal life by taking people's vital organs. Meanwhile, Bobby finds Bela and Dean leaves Sam to confront her.

Dean's time is up and he has to pay the Devil his due. When Lilith resurfaces in New Harmony, Indiana terrorizing a family to no end Sam, Dean, and Bobby steal Ruby's knife and confront the mother of all demons in a battle to the death.

Sam tries to move on without his brother and becomes hardened and more reckless in the way he hunts. Bobby and his psychic friend Pamela try to contact the other side to find out more about Dean's ultimate fate.

The Winchesters and Bobby Singer encounter the angry spirits of people they couldn't save.

Castiel sends Dean back in time to 1973 where he encounters younger versions of his parents and for the first time meets his grandfather Samuel Campbell who holds a secret that sheds a light on the Winchester Family's connection to the hunter community.

A hunter named Travis points Sam and Dean towards a meat eating creature called a Rugaru. Complicating matters is the fact that Travis's target is a normal suburban dad in the earlier process of changing and he hasn't killed anyone yet.

It's Halloween time and the Winchesters face-off against a shapeshifter with a penchant for impersonating classic movie monsters like Dracula, the Wolfman, and the Mummy.

Hell beckons again when Dean is stricken with a mysterious illness that frightens its sufferers to death. Sam and Dean scramble to find the cause of the disease in time to save Dean from sure death.

Investigating two mysterious deaths in a small town, Sam and Dean discover a witch is sacrificing people to summon an ancient powerful and extremely dangerous demon.

Sam and Dean investigate when a small town's wishing well actually starts to grant the people's wishes.

Sam, Dean, and Ruby discover the existence of a female prophet named Anna Milton, who can hear the voices of angels and thus figures into the plans of a demon named Alastair who wants to use her as a tool against the angels.

"I'll Kill her gentle." The angels want Anna dead, so Sam and Dean go on the run with the frightened girl, determined to discover the secret that has set the furies of Heaven on her.

The Winchesters try to stop a family from moving into a haunted house.

Sam and Dean investigate the activities of a trio of magicians who are using a grimoire to execute real feats of magic.

Sam and Dean investigate a haunting at one of their old high schools where we will see what school was like for the brothers back in 1997.

The Winchester's investigation into a series of deaths takes a deadly turn when a siren tries to tear them apart for good.

Sam and Dean try to find out why people in a small town are having near death experiences with alarming frequency by going into the spirit world.

Castiel and Uriel ask Dean to torture Alastair for information. But when Alastair breaks free, Castiel starts to believe that there is a traitor among the angels.

At Sandover Bridge & Iron Inc., Dean is Dean Smith, the buttoned-down director of Sales & Marketing. Sam is Sam Wesson, a cubicle-dwelling tech support guy. What the heck is going on? Or is it what the Hell?

An author has been writing books about Sam and Dean since 2005. Sam and Dean try to figure out how he knows so much about them.

Meet the Winchester boys: Dean, Sam and... Adam. The Winchesters discover they have a younger half-brother, whose mother vanishes just as a long-dormant grave robber renews his ghoulish career.

Castiel has been sent back to Heaven. His human host, Jimmy, tries to regain his life. But the demons won't leave him alone and now his family is at risk. Sam and Dean can help a little, but they're going to need a "miracle" to win.

Dean and Bobby have something frightening locked in Bobby's panic room: Sam, contaminated by demon blood. But as the apocalypse draws nearer, Bobby wants to free Sam to battle on their side.

The brothers prepare to fight the forces of the apocalypse in different camps. While Sam and Ruby hunt down Lilith, Dean joins Castiel and Zachariah to take on Lucifer.

Sam, Dean, and Bobby must deal with the aftermath of the Devil's escape from Hell, and receive startling news from the Prophet Chuck.

Rufus, an old friend of Bobby's calls, panicked about demons attacking a town in Colorado. Sam and Dean arrive to help, but soon discover things aren't exactly as they seem.

Sam decides to stop hunting but has a hard time after he receives a surprise visit. Dean and Castiel try to find the Archangel Raphael in their bid to stop the Apocalypse.

Dean refuses Sam's efforts to help him battle the Devil, and then wakes up to find himself five years in the future, in a wasteland where Lucifer has begun his endgame by unleashing a virus that transforms humans into zombies.

Sam and Dean head to a small town where people are murdered by famous dead icons. However the brothers come to a dead end when two teenagers reveal they saw Paris Hilton kidnap their friend.

Dean and Sam investigate a series of murders that resemble fairy tales and urban legends; the brothers track down an 11-year-old boy that Castiel deems a serious threat.

Dean and Sam learn that a witch is running a poker game where the currency is life years versus money; Dean tries to intervene when Bobby starts losing the game.

Dean and Sam are thrown into an alternate universe by the Trickster where they are characters in different TV series.

Dean and Sam are at a Supernatural convention where they meet lots of fans of the Supernatural Books. After a while they get the impression that something is not right at the location of the convention.

Dean and Sam get to know the whereabouts of Lucifer and want to hunt him down. But Lucifer is well prepared and is working his own plans.

Dean and Sam check themselves into a mental hospital so they can investigate a monster that is attacking patients.

While investigating a school, Sam is the target of a teenager's body-switching spell.

The renegade angel Anna escapes from her prison in heaven. She travels back in time to kill Sam and Dean's parents so that Sam is never born, and cannot be the vessel for Lucifer. Castiel sends Sam and Dean back to stop Anna.

Castiel helps Dean and Sam hunt down Cupid after people start killing each other for love on Valentine's Day.

Sam and Dean travel to Bobby's hometown to investigate why the dead are rising from their graves. Dean has a strange encounter with Bobby's dead wife.

Dean and Sam are killed by the hunters Walt and Roy. They awake in heaven and Castiel contacts Dean and asks him to seek out the angel Joshua. Meanwhile Zachariah is chasing them in Heaven to force Dean to be Michael's vessel.

Sam and Dean meet a woman in a small town who claims to be a prophet.

Zachariah has a new plan to overcome Lucifer but the strategy has unforeseen destructive consequences.

The Winchesters are abducted by a group of renegade gods who want to use them as a bargaining tool to stop the apocalypse.

Crowley offers to help the brothers hunt down Pestilence and reclaim his ring, while Dean gets a lesson in trust when Sam's history with the Four Horsemen's demon `Stable Boy' is revealed.

Bobby sells Crowley his soul in exchange for the location of Death, while Pestilence infects the Winchesters with a deadly disease.

With the Apocalypse looming, Sam and Dean realize they are out of options and make heart-breaking decisions that will change their lives forever.

Sam is mysteriously released from Hell and seeks out his brother who is trying to have a normal life. Together the brothers must join forces with their maternal grandfather, Samuel, and begin the fight anew.

When four families are killed and their babies are missing, Sam finds that a security company may be involved in the case and summons Dean to help him to bring the baby of a fifth slaughtered family to Samuel. However they are chased by a powerful shape shifter that wants the baby and they discover that the baby is a new breed.

When three policemen are struck down by the plagues of Moses, the brothers investigate, calling upon Castiel. He reluctantly appears,explaining that the murders are caused by the Staff of Moses and that there's a civil war in Heaven.

After Bobby discovers Crowley has no intentions of returning his soul, the hunter takes matters into his own hands.

When a vampire links the disappearance of a number of girls, Sam and Dean track down the bloodsucker who sinks his teeth into one of the brothers.

When several people kill themselves after asking for the truth, Sam and Dean investigate and realise that Veritas, an ancient goddess of truth, has been summoned. Her victims die when they hear more truth than they can stand.

Dean becomes suspicious of Samuel's motives, but Sam isn't sold on the idea that their grandfather is doing anything wrong. The brothers go along on a hunt with Samuel and the other Campbells, but things go terribly awry.

Crowley forces Dean and Sam to bring him an alpha monster. They go after a skinwalker, who plans to infiltrate his people into homes disguised as dogs and then have them all bite and transform their owners, creating a growing army.

The brothers investigate a series of abductions attributed to aliens. However, when Dean disappears and then reappears, they realise that the culprits are fairies and that only someone taken to the fairy realm can see them.

Dean and Sam are captured by Meg who wants to know Crowley's hideout. Sam proposes to show where Crowley is provided she gets his soul back. The Winchester brothers ask the reluctant Samuel who has made a deal with Crowley to have his daughter Mary back but he finally points out the spot. Dean and Sam break into an old prison with Castiel, Meg and two other demons to seek out Crowley, but they are betrayed by Samuel. Castiel escapes, but Sam and Dean are arrested and Meg is tortured by Christian. Will that be the end of the quest of the Winchester brothers for Sam's soul?

Dean decides to bargain with Death to get Sam's soul back, and has to accept a wager. Meanwhile, Sam refuses to take the risk of getting his damaged soul back, and prepares to cast a spell to prevent Dean's efforts.

Sam emerges from his coma and discovers that he remembers nothing since losing his soul. Dean and Bobby try to keep the secret, and the brothers head to Oregon to investigate the disappearance of several local female virgins.

Sam has flashbacks of a case he worked with Samuel; Sam and Dean follow the coordinates received in a text message to a small town, where Sam used to live; townspeople's comments surprise Dean.

When Ben calls Dean and tells him that Lisa is in trouble, Dean leaves Sam to investigate a case alone and rushes to the rescue. However, he's not prepared for what meets him at the door.

To protect Sam and Dean from a surprise attack from Raphael, Balthazar sends them both into an alternate universe where their lives are a TV show called Supernatural (2005).

When Sam, Dean and Bobby run into Rufus, and the Campbells all hunting the cause of an upsurge in supernatural activity, tensions erupt into violence.

The timeline is changed after Balthazar stops the Titanic from sinking.

Castiel sends Sam and Dean back in time to 1861 to collect the ashes of a phoenix.

Dean, Sam, Castiel and Bobby find Eve in a small town where the citizens have been converted to demons; Eve decides to torture Sam and Dean by bringing their mother back as a demon.

Castiel tells his story in his own words and confesses to some interesting choices.

Dean's worst nightmare comes true when a demon kidnaps Ben and Lisa in order to get to him. The brothers are forced to join forces with an unlikely ally to free them.

The wall comes down in Sam's head and all hell breaks loose. Dean and Bobby are, for once, at a total loss on how to help him and are forced to stand by and do nothing while Sam breaks. The battle for heaven comes to a head.

Castiel believes he is the new God and becomes obsessed with power. Sam, Dean, and Bobby try to find a way to stop him before he explodes with power, even if that means talking to Death himself.

The leviathans destroy Castiel's body and break loose. Now Sam, Dean, and Bobby have to track them all down. Meanwhile, Sam is beginning to struggle with what is real and what is a hallucination.

Sam reunites with a childhood girlfriend who is supposedly preying on human brains.

Sam and Dean investigate murders of people who have their guilty pasts come back and kill them. Could Dean be next?

Sam and Dean get caught in the middle of a feud between a married witch couple.

Two Leviathans are impersonating Sam and Dean and going on a killing spree. Now, Sam and Dean are the most wanted criminals in the country.

An estranged Sam and Dean reunite to solve a curious case in the most psychic town in America, but it's far from happy families for the Winchester brothers.

Sam runs into Becky and they end up getting married. Dean finds it suspicious that Sam is falling for her and decides to investigate.

Something is turning all of the people of a small town in New Jersey into cannibals.

Bobby is close to dying. He must confront his worst memory to escape, before his reaper catches up to him.

While Dean and Frank try to figure out the numbers from Bobby's clue, Sam tries to help a young girl search for her missing father.

After attacking Chronos, the time god, Dean is sent back to 1944.

Sam and Dean go up against the Amazons as they go on a killing spree. But it's twice as difficult for Dean because one of them is his daughter.

Sam and Dean are stumped. Somehow, a group of children's personal fears are becoming a reality and killing off a parent that each child has a certain hatred for.

Four years ago, Sam and Dean exorcised a demon serial killer. Now he's back for revenge.

Sam and Dean stumble onto one part of the Leviathan's ultimate plot while tracking down some cursed objects in a small town.

Lucifer is driving Sam into madness. Desperate to save him, Dean tries to find someone who can help. He finds Castiel with amnesia, instead.

Garth calls Sam and Dean for assistance in battling a ghost that you can only see when drunk.

Bobby's spirit tries to help Sam and Dean as they try to find a missing friend inside a haunted house.

Sam and Dean discover that Frank's hard drive, containing everything on the leviathans, is now in Dick's company building. To retrieve it, they ask for help from one of the employees, a young computer hacker.

Sam and Dean have possession of a Word of God, but are unable to read it. They find a young prophet that can help, but unfortunately, the angels and leviathans are after him, too.

To officially kill the leviathans, Sam and Dean need the blood of an Alpha. But Dick knows what the Winchesters are up to and sends his men after them.

Sam and Dean make a plan to storm Dick's company building and kill him once and for all, with help from Castiel and Meg. Providing Bobby doesn't get to Dick first.

Dean returns from Purgatory, one year after the fight with the Leviathans. After reuniting with Sam, they find out that Kevin escaped Crowley with another Word of God that may hold the key to closing the gates of Hell forever.

After saving Kevin's mother from demons, Sam, Dean, and Kevin go after the Word of God which is being auctioned off by Plutus, the god of greed.

While trying to track down Kevin, Sam and Dean get sidetracked by a series of murders where the victims have gotten their hearts ripped out.

Sam and Dean come across a home made video of three friends whose lives are turned upside down by a werewolf.

Dean assists the vampire, Benny, who helped him escape from Purgatory. Together they go after the nest led by the vampire that bit Benny. Sam thinks back to his life before Dean returned.

Sam and Dean team up with Garth, who has taken over Bobby's job, as they hunt down a Specter that's possessing innocent people who have a grudge against someone.

Crowley has kidnapped Kevin and the rest of the prophets that are able to read the Word of God. Castiel mysteriously returns from Purgatory and helps Sam and Dean rescue Kevin.

Castiel decides to become a hunter, like Sam and Dean. But his first day on the job is a doozy when they investigate a series of murders caused by old cartoon gags. Meanwhile, Sam thinks back to his first time meeting Amelia's father.

Benny seems to be attacking innocent people and only Dean believes he's innocent.

Dean and Castiel try to rescue Samandriel from Crowley. Sam tries to decide whether or not he should continue hunting or be with Amelia.

When two LARPers turn up dead, Sam and Dean investigate the fictional world of Moondoor, where they find a familiar face.

Sam and Dean's grandfather, Henry Winchester, arrives by time travel, claiming that he has something to protect from an Abaddon that is hot on his trail.

Sam and Dean go up against a group of Nazi necromancers.

Kevin has found out that in order to close the gates of Hell, the person needs to accomplish three tasks. The first, is to kill a Hellhound.

James Frampton, an old friend of Sam and Dean, has become a witch. Now he's supposedly killing innocent people.

Sam and Dean come across a mysterious man that dies once every day.

Sam and Dean hunt down the angel tablet with assistance from Castiel and Meg.

A hunter has been training Krissy and other kids to be hunters.

The second task is to rescue an innocent soul from Hell and deliver it to Heaven.

While searching for Kevin, again, Charlie joins up with Sam and Dean as they track down a creature that's been liquefying its victims. Plus, a new side of Charlie is revealed.

Sam and Dean search for the Word's author, Metatron. Castiel tries to protect the angel tablet. Kevin tries to solve the third trial under Crowley's supervision.

Sam and Dean try to figure out how to cure a demon. Crowley starts killing victims that Sam and Dean have saved from previous jobs. Castiel and Metatron begin the trials to close the gates to Heaven.

Sam and Dean capture Crowley to finish the trials and close the gates of Hell. Castiel and Metatron continue the trials to close the gates of Heaven. Sam is left with a huge decision.

Sam is dying. Dean asks for help from the angels. Castiel tries to adjust to being human as the angels come after him.

Sam and Dean reveal to Kevin that they have Crowley hostage, while Abaddon returns to hunt them all down.

Sam and Dean track down Castiel, while Bartholomew, a new leader of the fallen angels, tries to destroy him.

Sam and Dean accidentally free Dorothy, who has been trapped in the bunker for years, who seeks their help in killing the wicked witch.

When the only witness to a couple of mysterious murders is a dog, Dean performs a risky spell to help him communicate with canines.

Dean and Castiel team up to find a Rit Zien, an angel healer, who is easing peoples' suffering by killing them. Sam and Kevin ask Crowley for help in finding a way to open the gates to Heaven.

Dean and Sam visit Dean's old boy's home that's now being haunted by a ghost.

Sheriff Mills calls Sam and Dean for help with multiple disappearances in the town. Discovering all four victims belonged to the same church chastity group, Sam and Dean decide to infiltrate by joining the group themselves.

The angels go to war against each other. A secret about Ezekiel is revealed.

Dean and Castiel ask Crowley for help in finding Gadreel and getting him out of Sam's body.

Sam and Castiel believe that they found a way to track Gadreel. Dean and Crowley team up to find the first blade, which is in the hands of the biblical Cain.

Sam and Dean find out that Garth has been taken in by a family of werewolves.

Sam and Dean apply for jobs at a wellness spa so they can investigate the murders of guests who have had the fat sucked out of them.

Kevin's spirit returns to ask Sam and Dean to find his mother. Castiel is taken to Bartholomew.

As Dean and Sam investigate the murder of a teenage girl, they once again cross paths with the Ghostfacers.

Sam and Dean assist Crowley in the search for the first blade.

Dean copes with the side effects of the Mark of Cain, as Sam investigates a series of violent murders related directly to Abaddon.

When Castiel rejects Metatron's offer to join forces, a surprising plan is set in motion; Gadreel is apprehended.

Sheriff Mills calls Sam and Dean for help when she finds a young girl running from a vampire pack.

Sam and Dean visit Chicago and find the city's underbelly is divided between powerful clans of monsters, including werewolves and shape-shifters.

Abaddon makes a deal with Crowley to stop the Winchesters and recover the first blade. Castiel tries to bring Gadreel to his side in the war against Metatron.

Angels are committing suicide in Castiel's name. Sam and Dean try to find out why.

The influence of the mark on Dean reaches new heights, as Metatron begins to reveal himself to humanity.

Dean is a demon and running amuck with Crowley while Sam tries to figure out what happened to his brother. Meanwhile, Castiel is dealing with his diminishing grace.

Crowley is worried about Dean getting out of control, giving him a target to feed the mark. Sam struggles to escape from Cole. Hannah tries to convince Metatron to give Castiel's grace back.

Sam continues to try to save Dean from the Mark of Cain. Realizing that Dean's antics are causing problems for him in hell, Crowley seeks help from a reluctant Castiel.

Sam and Dean investigate a series of werewolf attacks in an attempt to find out who the culprit is.

Sam and Dean investigate a haunting at a theatre.

Dean encounters a surprising message on Bobby's phone, and Sam and Dean investigate.

Sam and Dean discover a group of witches "gone wild" and they attempt to stop them.

Jody Mills is matched with an overeager partner during a mandatory sheriff's retreat; when a gruesome corpse is discovered, Jody calls Sam and Dean to help investigate.

When Castiel finds Jimmy's daughter in a group home, she persuades him to break her out; Crowley is faced with a big challenge.

Sam and Dean try to deal with the aftermath following the bloodbath. Castiel attempts to fix a struggling relationship with Claire, and Claire wants revenge on Dean for what he did to her friend.

When Sam comes across a video of Charlie attacking a district attorney, Dean thinks she has returned from Oz to hunt on her own.

Dean is mysteriously transformed into a teenager. He has to deal with teenage struggles all over again, along with being a hunter.

To take his mind off of the Mark of Cain, Dean goes hunting. They track down a ghost that is killing college students through electronics and the internet.

Sam, Dean, and Castiel must deal with Cain's return. Rowena and Crowley grow closer.

Despite Dean's directive to forget about looking for a cure for the MOC, Sam continues to do research. Dean suspects Sam is hiding something but decides to focus on a murder case where they run into Cole.

Dean and Sam investigate grisly, identical suicides by various people with little in common; the brothers begin to suspect that a priest is involved.

Castiel comes back and he and Sam check out a lead on the Mark of Cain. They decide to go to Bobby for help. Meanwhile Dean and Rowena meet up.

Charlie contacts Sam and Dean after she finds the Book of the Damned - which could help eliminate the mark of Cain; Castiel and Metatron look for Castiel's grace.

Sam looks for a magical box built by former Men of Letters, Magnus, hoping it will cure Dean, but is surprised by a deadly alarm system.

Castiel tries to reconnect Claire with her mother who went missing, and calls Sam and Dean for help with the case.

While investigating a strange murder, Sam and Dean discover the killer has the same tattoo as those from the Styne family; Castiel plays referee when Charlie and Rowena must work together; Crowley turns to an old enemy for help with Rowena.

Dean takes matters into his own hands regarding Stynes; Sam attempts to come to terms with his decision.

Dean comes to a stunning decision that will alter his life -- as well as Sam's; Rowena and Crowley face off, putting Castiel in the middle.

Dean and Sam dealing with the aftermath of freeing the darkness on earth.

Jenna winds up in a dangerous situation and calls Dean for help, leaving Sam to deal with monsters on his own.

Sam and Dean try to help Castiel recover from Rowena's spell, while searching for Amara who has now grown into a young girl. Rowena tries to use her powers to protect herself from the Winchesters, while Crowley tries to use Amara for his personal gain.

Sam and Dean's road trip to fight monsters and demons is chronicled entirely from the Impala's perspective.

Sam and Dean investigate a series of murders at a local B&B that also happens to be Lizzie Andrew Borden's old home. When a man tells them he saw a little girl around the B&B around the time of the murders, the brothers realize Amara may be responsible.

Castiel seeks out Metatron's help to stop the Darkness. However, Metatron is pretty happy with his new life as a freelance videographer for the local news and isn't inclined to help the Winchesters or Castiel.

Sheriff Donna calls Sam and Dean for help after a horrific murder with supernatural elements happens in her town. Sam continues to have visions and asks God for help, which frustrates Dean.

Sam is shocked when his imaginary childhood friend, Sully, makes an unexpected appearance. Sam tries to understand why he is seeing Sully now. Even more surprising, Dean can see him too.

With Amara leaving a trail of bodies in her search for God, Sam enlists Crowley and Rowena to set up a meeting between him and Lucifer in the cage.

Now that he has Sam in the cage with him, Lucifer offers Sam a way out but it comes with a steep price. Dean and Castiel look into the angel smiting that might have killed Amara.

Sam and Dean investigate a case where people are suffering violent deaths after hearing a mysterious sound.

Claire thinks recent murders in town are supernatural and asks Sam and Dean for help; Jody Mills reveals that Claire has been attacking people and accusing them of being monsters.

Sam and Dean investigate a set of murders on Valentine's Day and discover they are dealing with an ancient curse. Once kissed by the curse, the person is marked to die.

Sam and Dean convince Lucifer (unknowingly, thinking he's Castiel) to send them back in time to find a hand of God which could destroy Amara.

Sam and Dean attend a wrestling match to relive one of their fondest memories, but when a wrestler turns up dead, they suspect foul play.

After dangerous creature is released into an old house, a mother and child are comatose. Sam and Dean find that Bobby and Rufus tracked the same creature so the Winchesters look to the past to catch the monster before any one dies.

In the midst of battling werewolves Sam gets shot then strangled and goes into shock. Dean, thinking Sam is actually dead, takes drastic measures to talk to a reaper in order to save his brother.

Lucifer tries to assert himself into heaven; Crowley tells Sam and Dean they must take down Lucifer.

Sam and Dean are visiting a small town in Colorado where people are mysteriously disappearing every 27 years. While they are investigating, the boys encounter a pair of hunters seeking revenge on the monster causing the disappearances.

Amara unleashes a dark fog on a small town that causes everyone to go mad. Dean and Sam realize this is a stronger version of the original black vein virus Amara previously unleashed.

Concerned for Castiel, Dean and Sam devise a plan to rescue Lucifer from Amara's clutches.

Sam and Dean face their biggest challenge yet. Rowena makes her move.

Chuck tries to lock Amara away for good but then faces some unexpected complications.

Dean comes face to face with his mother while Sam fights for his life after being shot by Toni.

Dean, Castiel and Mary have a lead on Sam and set out to rescue him. Dean is uncomfortable putting Mary in danger, but she insists on going. Meanwhile, Crowley is tipped off that Lucifer has taken over the body of rock star Vince Vicente.

When a crying baby leads to death in a mysterious abandoned house, Mary, Sam and Dean decide to investigate. Meanwhile, Castiel's hunt for Lucifer leads him, begrudgingly, to partner up with Crowley.

Sam and Dean investigate a case that leads them to a devout religious family living off the grid. They realize the parents are hiding a huge secret that could destroy them all. Meanwhile, Dean struggles to accept Mary's latest decision.

After learning that the soul of Adolf Hitler has been trapped in a 1930's gold pocket watch, Dean and Sam must act quickly to prevent a group of Nazi necromancers from resurrecting the Führer.

When hunters gather together to celebrate the life and tragic death of one of their own, Sam, Dean and Mary must take action when a demon starts picking off hunters one by one.