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

Hunter Rufus Turner calls in Bobby, Sam, and Dean to deal with a demon infestation in his town, but they soon discover the truth is much more horrifying. Meanwhile, Castiel goes to seek the only entity that can defeat Lucifer.

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.

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?

Super fan Becky uses Chuck’s phone to trick Sam and Dean into attending a Supernatural fan convention, complete with fans dressed up as Sam and Dean. One of the activities is a live action role playing game, but things quickly turn sour after a real ghost appears on the scene.

Sam, Dean and Castiel track down the Colt and head off to find Lucifer to send him back to Hell. It’s a hunters’ reunion when the crew joins forces with Bobby, Ellen and Jo for what could be their last night on Earth.

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.

Castiel helps Sam and Dean hunt down Cupid on Valentine's Day after townspeople start to kill each other for love. However, after Cupid tells them he's innocent, they discover Famine, one of the Four Horsemen of the Apocalypse, has arrived in town.

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. When they wake up in heaven, Castiel tells them that they need to find an angel named Joshua, who talks directly with God. But he also has a warning, Zachariah is searching for them.

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.

Dean begins to think the only way to stop Lucifer is to say yes to Michael, but the angels decide they don't need him anymore. Dean, Sam, and Castiel are horrified at the angels' new game plan and take on Zachariah to prevent an all out war on Earth. Meanwhile, a familiar face returns.

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.

The showdown between good and evil is at hand. With the Apocalypse looming, Sam and Dean realize they are out of options and make heart-breaking decisions that will change their lives forever. A beloved character faces death.

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

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 Bobby discovers Crowley has no intentions of returning Bobby's soul, the hunter takes matters into his own hands. He calls on Sam and Dean for help after he unearths one of Crowley's deepest secrets. Meanwhile, Sam and Dean learn what Bobby does all day when they are not around.

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.

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.

Dean and Sam investigate what seems to be a werewolf killing but turns out to be a skinwalker posing as a family dog who is taking revenge on his owner’s enemies.

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.

Meg kidnaps Sam and Dean and tries to force them to tell her where Crowley is hiding. Sam makes her a deal - they will help her find Crowley if she promises to torture him for information about how to get Sam's soul back. Castiel joins the fight but finds it difficult to work with Meg.

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.

Dean and Sam find themselves in an alternate reality where everyone believes they are two actors named Jensen Ackles and Jared Padalecki, who star in a TV show called Supernatural about two brothers who hunt monsters.

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.

After Balthazar changes history and keeps the Titanic from sinking, Fate intervenes and begins killing those that would have died on the ship. Castiel tells Sam and Dean that Fate is very upset with the two of them and the only way they can stay alive is to kill her.

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.

Sam, Dean, Bobby and Castiel track Eve to a small town in Oregon. The guys discover the townspeople have been converted to demons, but surprisingly, they all appear to be dying. When they finally do meet Eve, she decides to torture the brothers by bringing back their mother.

Castiel tells Sam, Dean and Bobby about the war in Heaven and how he and Raphael became enemies. Bobby believes Castiel is hiding something, but Dean refuses to believe it.

A demon kidnaps Ben and Lisa to get to Dean. Sam and Dean are forced to join 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 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.

The broken wall in Sam's head causes him to have hallucinations, and he has difficulty discerning what's real and what's not. Bobby worries that Dean is beginning to stumble under the weight of fighting and keeping an eye on Sam.

Dean is furious after Sam disappears to follow a lead on a case with clues that are identical to a case Sam solved as a kid. The demon turns out to be Amy, who has been killing low-life thugs and taking their brains for dinner - the same demon Sam found as a kid.

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 meet Maggie Stark, a witch who has unleashed her wrath on a small town, resulting in numerous deaths. Sam and Dean track down her husband, Donald, to see if he can help. Donald tells the brothers that Maggie is mad at him for having an affair and is taking it out on the townspeople.

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.

While on a hunt, Sam runs into someone from his past and a confrontation ensues. Meanwhile, Dean reluctantly teams up with a quirky, laid-back hunter named Garth, when he finds himself in a situation that he just cannot explain.

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.

As Sam and Dean race the clock on a high-stakes mission, Bobby seeks the help of an unlikely old friend to solve one of the most personal cases of his life.

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 tangle with the God of Time, who sends Dean back to 1944, where he is immediately arrested by none other than the one and only Eliot Ness. While trying to figure out how to retrieve his brother, Sam is surprised by the reappearance of an old friend.

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.

Sam and Dean investigate strange happenings in a town where childhood fears are coming to life. To Sam's horror his childhood fear of clowns manifests in a very violent and traumatic way which in turn leads to Dean's childhood fear, losing his brother.

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.

After a ballerina is found dead from dancing herself to death, Sam and Dean look into the case and discover the ballet slippers she wore were cursed. When Dean accidentally touches the shoes the power of the curse starts to take hold of him.

Lucifer drives Sam to the breaking point and Sam ends up in a mental hospital. Desperate to save his brother, Dean calls every hunter he knows for help. One of the hunters gives him the name of a healer who turns out to have a very familiar face.

Dean is surprised when he gets a call from Garth asking for the brothers’ help on a case. Sam and Dean discover they are battling a Shojo, a Japanese creature sent to seek revenge on enemies. The worst part about fighting a Shojo? You can only see it when you’re drunk.

Sam and Dean get a call from Annie Hawkins, an old hunter friend, asking for help on a case. When they arrive in town, they find out Annie has disappeared. They trace her last whereabouts to an old abandoned house that is haunted by a powerful ghost.

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 lightning 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 gets one of them but for the other two, the Winchesters must face two of their strongest opponents.

Dean and Sam prepare for battle with Dick Roman, who is in the final phase of his plan. The Winchesters must team up with Castiel, Bobby, Meg, and Kevin in order to stop him.

One Year Later, and 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.

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 string of unusual murders where the victims were all recipients of organs from the same donor. The killer is captured, but things become even more complicated when the brothers find their killer in a trance mumbling an ancient prayer.

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.

After Benny gets brutally beat up by vampires, he calls Dean for help who abruptly packs up and tells a confused Sam that he’s taking a personal day. Meanwhile, Sam uses his solo time to reflect on the life he left behind with Amelia.

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 someone had to pick up the slack.

Sam and Dean are stunned when Castiel suddenly appears back on Earth with no memory of how he escaped from Purgatory. Meanwhile, Mrs. Tran enlists a witch to concoct a demon bomb.

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 that all the deaths resemble cartoon deaths.

Sam asks a hunter named Martin to keep an eye on Benny without telling Dean. However, when Martin tells Sam and Dean there was a vampire kill and that Benny is responsible, Dean defends his friend.

After Naomi orders Castiel to rescue an angel being held captive by Crowley, he turns to Dean for help. Meanwhile, Sam meets with Amelia who asks him to make a choice: stay with her or leave and never contact her again.

Sam and Dean investigate the mysterious deaths of two LARPers who were playing a game titled Moondoor. The guys are thrilled to discover that the Queen of Moondoor is none other than Charlie.

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, their father.

Sam and Dean investigate the death of Rabbi Bass, who appears to have spontaneously combusted. The case becomes even more confusing when they learn that the Rabbi was researching Nazi Necromancers.

Kevin deciphers the demon tablet and figures out how to close the gates of Hell. He tells Sam and Dean that according to the tablet one person must face a series of three trials, and the first one is to kill a hellhound.

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.

Sam and Dean are stumped when they investigate a possible zombie case where an amnesiac man dies and then revives himself every day. After the man is attacked by the goddess Artemis, Sam and Dean realize he’s not a zombie.

Castiel reappears in Sam and Dean’s life and tells them Crowley has unleashed several demons into a small town in order to find Lucifer’s Crypt, which holds a valuable relicts. While interrogating a demon, the three discover Crowley has been torturing Meg, who knows the location 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.

Kevin is terrified. He has started hearing Crowley's voice in his head and calls Sam and Dean for help. After hearing Kevin's news, Sam and Dean team up with a reaper named Ajay, who helps them with the second trial from the demon tablet.

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 Bradbury stumbles upon a case, Dean decides it's time to teach Charlie how to be a hunter-in-training.

When Sam and Dean receive a distressing video message from Kevin Tran, they set out trying to uncover the third trial. The boys make a discovery that sends them to a casino in Colorado where they find a mysterious recluse who may be able to fill in the holes in Kevin’s research. Meanwhile, Castiel tries to elude Naomi and the angels hunting him.

Sam and Dean are reunited with Castiel as they are digging through the Men of Letters' files. They stumble upon an film which could be the key to completing the third trial. Metatron enlists Cass to mull over problems at home.

With Crowley poised to undo all the good they’ve ever done as hunters, Sam and Dean find themselves cornered. But with Kevin's help, the Winchesters ready themselves for one last play against the King of Hell. Metatron initiates a plan with Castiel to take on Naomi and the bureaucracy of Heaven.

With Sam's life on the knife-edge, Dean appeals to the fallen angels for help. Unfortunately, most of them only see Dean as a means to get to Castiel and exact vengeance on the one who caused them to Fall.

Dean and Sam take a captive Crowley to the Men of Letters base in the hopes that he will give up the names of the people possessed by his minion demons. But before they can get any information they are called away to investigate the disappearance of three soldiers.

Castiel makes his way to the Winchesters but discovers a band of angels are hunting him, intent on exacting vengeance for what they believe is his role in their fall from Heaven. Meanwhile, Ezekiel continues to repair Sam, but informs Dean that there is a price to be paid.

With the help from Charlie, Sam and Dean inadvertently release two individuals contained inside of the Men of Letters bunker who where both imprisoned in 1935. They soon discover that one of the individuals is Dorothy of Oz, and she is hot on the trail of the Wicked Witch of the West.

To track down a killer, Dean uses a spell which allows him to speak with the only witness, a German Sheppard. However, he soon discovers that everything is going to the dogs when the spell starts making him act like a canine as well.

Castiel is working as a convenience store clerk and learns of a series of local disappearances. He call the Winchesters, but Dean insists on Sam staying with Kevin to research the demon tablet while he help Cass.

Sonny, a man who runs a boy's home, calls Dean for help after a mysterious death. When Sam wonders how his brother knows Sonny, Dean explains that he spent two months at the boy's home when he was 16, after being arrested for theft.

When members of a virgin chastity group are abducted, Sheriff Jody Mills asks Sam and Dean for help. The Winchesters go undercover to track down the missing members, but when Dean disappears, Sam and Jody end up having to track him down.

The angels are embroiled in a bloody civil war, and Castiel is swept up in the conflict. Meanwhile, Dean realizes that Ezekiel is not who he claims to be and tries to warn Sam with dire results.

Dean and Castiel make a deal with Crowley in order to contact Sam's consciousness so he can expel the angel Gadreel from his body. However, Abaddon is hot on their trail and Crowley has plans of his own.

Crowley turns to Dean for help to locate the First Blade, the only weapon that can kill Abaddon. However, the trail leads them to the biblical Cain. Meanwhile, Sam asks Castiel for help when they need to extract the remaining angel grace from Sam's body to track Gadreel.

Six months after his disappearance, Garth turns up injured in a hospital. Sam and Dean arrive separately to investigate and soon discover that their friend has undergone a startling transformation.

Two dead victims show up with all the fat having being stolen from their bodies. Sam and Dean go undercover in order to investigate a local spa, and discover that a monster is preying on the overweight.

While Sam and Dean try to track down Kevin's mother, Castiel is captured by an old battle-comrade and learns more about the factions of angels.

The Winchester brothers investigate a murder that was apparently caused by a ghost. Sam and Dean discover that the Ghostfacers, Ed and Harry, are already on the case.

Sam and Dean are searching for the First Blade and end up having to track down the missing Crowley and discover that he's now thoroughly addicted to human blood. The Winchesters decide that going cold turkey is the only way.

When Dean chooses to stay in the bunker and try and locate Abaddon, Sam goes to a small Illinois town to investigate a string of vicious murders committed by seemingly harmless individuals.

Castiel investigates the mass slaughter of angels and finds a lone survivor and an old friend. Meanwhile, Sam and Dean capture Gadreel, and Metatron begins the ending of his story.

Sheriff Jody Mills befriends a young girl on the run from vampires. When she's forced to kill one of the monsters, Jody calls in Sam and Dean for help. However, they discover that everything isn't at it seems.

Sam and Dean learn about a monster killing in Chicago and head there to investigate. What they find is a young cop whose girlfriend was killed by the same creature, and who is caught between five powerful clans of monsters who jointly control the city.

Abaddon finally gets something that she can use as leverage against Crowley to force him to lure the Winchesters into a trap. Meanwhile, Castiel rallies his forces and asks Sam and Dean to come in and help him interrogate a captive angel with ties to Metatron.

After an angel carries out a suicide attack on an ice cream shop to kill one angel from another faction. Sam and Dean investigate and discover that the target was one of Metatron's angels and that Castiel may be responsible.

After attacking Gadreel, Dean leaves with Crowley to track down Metatron and kill him. Meanwhile, Gadreel takes Castiel into Heaven to try and break Metatron's connection to the angel tablet.

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 fading grace.

Crowley is worried that Dean, driven by the mark, is getting out of control. Sam struggles to escape from Cole. Hannah tries to convince Metatron to give Castiel his 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.

Sam and Dean investigate a haunting at a theatre.

After Dean hears a surprising message on Bobby's phone, he and Sam head out to investigate.

Sam and Dean discover a group of witches on a gone wild trip and attempt to stop them.

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

Castiel finds Jimmy’s daughter Claire in a group home and she convinces him to break her out. After she runs away from him, Castiel calls Sam and Dean to help find her before she gets in trouble.

After the massacre at the ranch, Dean, Sam, and Castiel double their efforts to find a cure for the Mark of Cain. Desperate, Castiel comes up with an idea that Sam deems the single worst idea he's ever heard. Meanwhile, Rowena continues to plot against Crowley.

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.

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.

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.

Dean, Sam and Castiel deal with Cain’s return. Crowley and Rowena continue to grow closer but when Crowley bails on plans with his mother to help the Winchesters, Rowena lets him have it.

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.

Sam and Castiel follow up on a lead about the Mark of Cain. Dean and Rowena meet.

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. 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. Meanwhile, Castiel acts as referee when Charlie and Rowena are forced to work together on the Book of the Damned. When Crowley discovers that his mother is missing, he turns to an old enemy for help.

When it comes to the Stynes, Dean decides to take matters into his own hands. Sam tries to come to terms with his decision.

Dean makes a shocking decision regarding the Mark of Cain that would change not only his life, but Sam’s too. Meanwhile, Crowley and Rowena face off and Castiel gets caught in the middle.

Picking up where the finale left off, Sam and Dean must deal with the Darkness that has been unleashed. Castiel deals with the effects of Rowena’s spell and recalls his brutal battle with Crowley.

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.

While Rowena tries to consolidate her power to protect herself from the Winchesters, Sam and Dean search for a missing baby connected to the Darkness. Meanwhile, Castiel struggles to heal and Crowley tries to find a way to use the Darkness for his own personal gain.

Seen entirely from the point of view of the Impala, Sam and Dean go on a road trip to fight monsters and demons.

Sam and Dean investigate a series of murders at a local B&B that also happens to be Lizzie Borden’s old home. When a local man, Len, 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. Meanwhile, Crowley is losing his hold on Amara.

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 childhood imaginary friend Sully makes an unexpected appearance. Sam can’t understand why he’d see Sully now but what’s even more surprising is that Dean can see him, too. Flashbacks reveal young Sam’s friendship with Sully and why he needed him.

Amara unleashes her power on the local townspeople as she issues a shocking challenge. Dean tries to better understand the hold Amara has on him, while Sam and Crowley come up with a plan that could have disastrous consequences.

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 could have killed Amara.

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

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.

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.

Hoping to find a weapon powerful enough to defeat Amara, Dean convinces Castiel, who is still possessed by Lucifer, to send him back in time to 1944 to the fated submarine mission that sunk the Hand of God.

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.

A dangerous creature is accidentally released into an old house, attacking a mother and her child and leaving them both in a coma. Sam and Dean learn that Bobby and Rufus once tracked the same creature, so the Winchesters look to the past to come up with a plan to catch the monster.

Sam and Dean battle a pair of werewolves who have captured two victims. Just as the brothers are about to win, one of the werewolves shoots Sam. Dean gets his brother and the victims out of the house but learns that a pack of werewolves are hot on their tail.

Lucifer takes a trip home and tries to assert himself into Heaven. Crowley tells Sam and Dean he has a way to take down Amara.

In a small town in Colorado, mysterious disappearances happen every 27 years. Sam and Dean head to the town to investigate and meet two hunters who have a personal vendetta against these once-in-a-generation monsters.

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.

Amara shows Dean how she’s torturing Lucifer. Worried for Castiel, Dean and Sam come up with a plan to rescue him from Amara’s clutches.

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

God comes to a decision about Amara that has direct repercussions for Sam and Dean.