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.

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. 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 multiple patients of grief counselor Mia Vallens turn up dead, Dean, Sam and Jack investigate the mystery surrounding the murders and, each inadvertently, are forced to deal with unresolved grief of their own.

While working on a case involving the ghost of a demented doctor, Sam and Dean get assistance from an unexpected source. Castiel finds his way back to the Winchesters.

Castiel is reunited with Jack and together with Sam and Dean, they head to a sleepy old western town to investigate a murder. Dean gets to live out his boyhood fantasy when he comes face to face with a famous, gun-slinging outlaw.

As Sam and Dean continue their search for Jack, with Asmodeus hot on their trail, they stumble across a familiar foe. Meanwhile, Lucifer manages to escape Michael’s grasp and finds himself an unlikely and mostly unwilling ally.

Sam and Dean join the crew of a heist on behalf of a Crossroads Demon who has offered them a spell that can track Nephilim.

Jack, desperate to prove to Sam and Dean that he is good and that he can control his powers, enlists the help of a dreamcatcher named Kaia to help him find Mary Winchester and save her from the alternate universe. However, when plans go awry, the Winchester brothers are the ones who need saving.

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.

Donna calls Sam and Dean for help after her niece, Wendy, goes missing. The three hunters discover Wendy was kidnapped by a man who sells human parts to monsters in a grotesque online auction and race to save her before it is too late.

Dean falls victim to a couple of witches, sisters Jamie and Jennie Plum, who manage to steal a powerful book of spells from the Winchester brothers. When Sam and Dean go after the book, they get help from a powerful and surprising ally when Rowena, back from the dead, intervenes to assist them.

Sam, Dean and Castiel search for Lucifer who, meanwhile, strikes an unlikely deal with a local faith healer named Sister Jo. Asmodeus inches closer to finding Jack.

Jack and Mary manage to escape Michael’s clutches and end up finding an ally in “apocalyptic world” Bobby Singer. Meanwhile, Sam, Dean and Castiel continue to search for a way to open a breach, not realizing that one of their own may be working against them and costing them precious time.

Sam and Dean are close to collecting everything they need to open a rift into the Apocalyptic World and possibly rescuing Mary and Jack. The one missing ingredient leads the Winchesters to a black market for religious relics where everything is not always as it seems.

Sam, Dean and Castiel are transported into the animated world of Scooby Doo where they join forces with the Scooby gang to solve a ghostly mystery.

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.

Lucifer rules over heaven but things aren’t going exactly as planned, exasperating his first lady, Jo. Sam and Castiel are perplexed by the return of Gabriel. Meanwhile, Dean gets one step closer to finding Mary and Jack.

Sam and Dean must stop Rowena, who is on a deadly mission. Meanwhile, Castiel looks to heaven to recruit angels for an impending invasion but is shocked by not only what he finds, but who.

Gabriel is back and drags Sam and Dean into his plot for revenge on the demigods who sold him to Asmodeus. Meanwhile, Jack's inflating confidence leads to reckless decisions that could put others in harm's way.

Sam, Dean, Castiel and Gabriel must work together if they have any hope of bringing Mary and Jack home. Meanwhile, Rowena’s encounter with Lucifer may alter the outcome of the journey for one of our heroes.

Sam and Dean devise a plan that will save innocent lives. Meanwhile, Jack continues to wrestle with the consequences of his decisions.

Our heroes, Sam and Dean Winchester, continue to be tested in the battle between good and evil, but one impulsive decision could alter the lives of one the brothers forever.

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.

Sam finds a clue to Dean’s whereabouts, so he, Mary and Bobby set out to investigate. Castiel imparts some sage advice on Jack, who, still desperate to belong, seeks out a familial connection.

Still trying to solve the mystery of what happened to Dean, Sam enlists the help of Sheriff Jody Mills who may unknowingly already be on the case. Castiel continues to be a father figure to Jack, who surprises even himself, when a life is on the line.

Dean continues to struggle. Meanwhile, Sam must think fast when action figures come to life, and our heroes find themselves living in a real-life horror movie.

After a hunt gone wrong leaves Maggie’s whereabouts unknown, Sam, Dean, Mary and Bobby race to find her, but what they find are their own worst nightmares.

Sam and Charlie team up to get to the bottom of a string of random disappearances. Meanwhile, Jack believes that he has found a case and convinces Dean to partner-up with him on the hunt.

Sam and Castiel track down a Shaman, who may be able to help a friend. Nick continues to spiral down a dark path as he looks for answers surrounding the deaths of his wife and son. Jack turns to Dean for help enjoying the human experience.

When Sam and Dean join forces with an unexpected ally, the outcome will alter the course of two lives. Meanwhile, Heaven faces an attack from a dark force, driving Castiel to make an enormous sacrifice to make things right.

Sam and Dean enlist the help of their pal Garth to gain inside information on what Michael may be planning. The brothers split up to each go after weapons that can aid in their fight against the Archangel, but this may be a fight our heroes cannot win.

Michael has re-taken control of Dean as his army of monsters continues to move in on our heroes. Sam devises a plan to try and reach Dean and stop Michael before anyone else has to die.

Dean spends some bonding time with Mary and Donna. Nick finally finds the answer he has been searching for. Sam is left to make an unimaginable choice.

Sam and Dean must figure out how to stop the bloodshed when Donatello, who, in his current condition, is inadvertently scrambling the order of future prophets. Nick comes face to face with his past.

Sam and Dean look to occult lore for a solution to their latest problem, but instead of a resolution, they find much more than either of them had anticipated.

Sam and Dean enlist the help of Rowena to track down a demi god who feasts on human flesh. The challenge of keeping Michael at bay is proving to be more difficult than originally anticipated.

Sam and Castiel follow a case to a picturesque little town in Arkansas, only to find out nothing is as idyllic as it appears to be. Dean and Jack take a road trip to visit an old friend.

Sam and Dean are baffled when they come up against a monster they have never heard of before. Jack does his best to impress a new group of friends.

Sam and Dean race to help a friend in need. Meanwhile, Mary is concerned for Jack’s well-being, and Castiel enlists help from Jo/Anael to track down a miracle.

Sam and Dean continue to worry about the condition of Jack’s soul.

Sam, Dean and Castiel investigate a string of suspicious deaths that have a biblical element to them.

Sam, Dean and Castiel are thrown into an epic battle. Meanwhile, Jack becomes disenchanted with all the lies, and an old friend from the past shows up.