The angel scribe Metatron, who's had exclusive reign over Heaven, attempts to get Castiel to join forces with him. Still furious with Metatron, Castiel refuses, setting a surprising plan in motion. Meanwhile, Sam and Dean capture Gadreel.
Series star Misha Collins makes his directing debut. While Dean struggles with the aftereffects of the Mark of Cain, Sam hears about a case where straight-laced people are turning into violent murderers. Sam suspects possession and suggests to Dean that they investigate, but Dean tells him to go without him. While interviewing the local townsfolk, Sam meets an elderly woman named Julia (guest star JENNY O'HARA), who tells him the Men of Letters came to town in 1958. Julia tells Sam the story of a young man named Henry Winchester (guest star GIL McKINNEY) and his female companion, Josie Sands (guest star ALAINA HUFFMAN). While Sam is away, Crowley tests Dean.
Dean is frustrated when he can't reach Crowley, who has promised to find the First Blade. When Crowley finally calls Sam and Dean, he tells them he fell off the wagon and has been injecting human blood and needs their help. To make matters worse, he had a demon (guest star Rebecca Marshall) helping him find blood, but she sold him out and told Abaddon that he and the Winchesters were searching for the First Blade. The brothers need to find the blade before Abaddon does, so they enlist the help of a former member of the Men of Letters (guest star Kavan Smith). Meanwhile, Nicole "Snooki" Polizzi appears in a cameo role.
When a teenage girl (guest star ALI WEBB) is killed, the final selfie she took before the attack shows a ghostly figure in the background. Looking for something to keep them busy, Dean and Sam head to Washington to find the ghost. While the two interview the girl's mother, Betty (guest star MARIA MARLOW), they are surprised when she starts talking about cold spots and fritzing. When they ask her about bringing up paranormal signs, Betty replies that the "supernaturalists" who called earlier brought it up. Enter Harry Spangler (guest star TRAVIS WESTER) and Ed Zeddmore (guest star A.J. BUCKLEY), the famous supernaturalist Ghostfacers!
Sam and Dean are stunned to discover that the Men of Letters' bunker is haunted. Their investigation leads them to a storage facility where the demons have been keeping a prized possession. Meanwhile, Castiel is captured by Bartholomew (guest star ADAM HARRINGTON).
Sam and Dean investigate recent murders where the victims were hundreds of pounds lighter after their deaths. Suspecting witches, the Winchesters go undercover at a fancy day spa that all of the victims had attended for weight loss. While Sam is hired as a fitness instructor, Dean takes kitchen duty. After Dean swipes some tainted food and passes out, the guys realize someone is drugging the guests and literally sucking all of the fat out of them until they die.
After finding out that Garth (guest star DJ QUALLS) is in the hospital, Sam and Dean go to check on him. Still carrying the guilt over Kevin, Dean lays into Garth about disappearing and demands to know where he's been. Garth makes an excuse and then hightails it away from the guys. Confused as to why Garth would run from them, Sam and Dean do some investigating and are stunned by what they find.
Looking to reclaim his place as King of Hell, Crowley asks Dean for help finding "The First Blade," the only blade that can kill Abbadon. Knowing he owes Crowley a favor for helping Sam, and also wanting Abaddon dead himself, Dean reluctantly agrees and the two set off on a road trip. However, Dean and Crowley are completely unprepared when they find out who has the blade – Cain (guest star TIM OMUNDSON), the first son. Meanwhile, Sam is back at the bunker with Castiel who notices there is some leftover grace inside Sam. If they can extract it, they can use the grace to track Gadreel. The only problem is the procedure may do permanent damage to Sam.
Dean's best chance of saving Sam lies with Crowley. Devastated after Kevin's death, Dean vows to find the angel that killed him, not only to free Sam, but to seek revenge. Castiel arrives at the bunker and suggests they try to separate Sam's brain from the angel's so they can talk to Sam and have him expel Gadreel. However, there's one small problem: the only person who knows how to do that is Crowley.
The Angel War begins! After a massive angel slaughter occurs, Sam and Dean arrive at the scene to investigate and are surprised to run into Castiel. While investigating, Castiel is captured and tortured. Meanwhile, Dean questions Ezekiel's demands and wonders if it might be time to tell Sam the truth.
Sheriff Mills (recurring guest star KIM RHODES) calls Sam and Dean for help investigating multiple murders in her small town. Discovering all four victims belonged to the same church chastity group, Sam and Dean decide to infiltrate by joining the group themselves. When Dean disappears, Sam and Sheriff Mills realize whatever they are hunting has taken Dean too . . . and they team up to rescue him.
Dean gets a call from an old friend named Sonny (guest star BLAKE GIBBONS) asking for help with a ghost. Sonny runs a home for delinquent boys, and Dean was sent there for stealing food when he was younger. Sam is stunned he never knew this about his brother and asks for more information, but Dean dodges his questions. Another murder occurs while Sam and Dean are at the house, so they scramble to find the culprit before anyone else dies. Meanwhile, Dean looks up an old girlfriend (guest star ERIN KARPLUK) and recalls his time at the house.
Exiled from the bunker, Castiel gets a job at a Gas-N-Sip and actually starts to enjoy life as a human. A headline in the local newspaper about some disappearances in the area catches his eye, so he calls Dean to help him investigate the case. Dean knows he needs to keep Sam/Ezekiel away from Castiel, so he tells Sam that he and Kevin need to stay and work with Crowley to decipher the tablet. Crowley agrees to help Sam and Kevin… but in return he wants one phone call to Hell.
While investigating two bizarre murders, Sam and Dean realize there is an eyewitness to both gruesome deaths – a german shepherd. Anxious to find out if they are dealing with a witch, a skinwalker or other supernatural monster, the guys look up a spell that could let Dean "communicate" with the dog. Unfortunately, the spell comes with side effects that no one saw coming.
Sam and Dean discover that the table in the Men of Letters house (the one that lit up like a Christmas Tree when the angels fell), has an ancient computer attached to it. They figure if they can get the computer on, they can track the angels. Who better to call for help than the best IT girl there is, Charlie Bradbury (guest star Felicia Day)? While moving the massive computer, they dislodge a hidden hexbag that unleashes a magical green-webbed wall. Sam and Dean break through it and discover the one and only Dorothy (guest star Tiio Horn) from Oz. She had trapped herself and the wicked witch (guest star Maya M) in the web years ago to stop the witch from finding the key that would open the gate that connected their world with Oz. With the wall broken, a massive and magical fight ensues that threatens to destroy the Men of Letters bunker.
After Ezekiel tells Dean a group of angels is hunting Castiel, he and Sam race to find their friend before the vengeful angels do. Meanwhile, a homeless Castiel is trying to make his way through the city and comes across some unexpected surprises.
After defeating the Leviathan, Sam and Dean set off on an epic quest to seal the Gates of Hell last season. Facing a series of trials, the Winchesters soon found themselves in the middle of an age-old power struggle between the King of Hell and legions of warrior angels. But with the angels cast out of heaven and walking the earth, things just got very unpredictable.
Sam and Dean have spent the last year cruising the highways of the United States in their 1967 Chevy Impala, searching for their lost father and encountering creatures that most people believe exist only in folklore, superstition and nightmares.
Twenty-two years ago, Sam and Dean Winchester lost their mother to a mysterious and demonic supernatural force. As a result, their father, John, raised the brothers to be soldiers. He taught them about the paranormal evil that lives in the dark corners and on the back roads of America...and he taught them how to kill it.
At the start of the fourth season, Dean has been freed from Hell, but he can't remember how or what happened while he was there. It soon becomes clear that Sam has secrets of his own, including what happened in the four months Dean was gone. There are whispers that an evil demon will soon be freed from its prison. If Sam and Dean can't stop it, it could mean the Apocalypse ...
Although Castiel is missing, Dean manages to escape Purgatory - but not alone. He's returned with a mysterious comrade whose reason for escape is more than Dean bargained for. Meanwhile, Sam tries to reconcile the life he rediscovered with Dean's sudden reappearance. As the boys reunite, they make a shocking discovery that could lead them on a deeply personal mission to settle old scores.
They've been fighting evil for four years now - but Sam and Dean Winchester have never faced a battle like this! Lucifer now walks free and the Apocalypse is near. With the ultimate battle at hand, the brothers must somehow avert the End of Days!
A year after the Apocalypse, Dean's past inevitably catches up to him - when Sam, mysteriously freed from his cage in hell, needs his brother to rejoin the fight. A new threat is rising in the dark corners and backwoods of America. Not demons or angels this time - but creatures. They're growing in numbers. Breaking old patterns. And leaving a very thick and bloody trail in their wake.
The thrilling and terrifying journey of the Winchester brothers continues as SUPERNATURAL enters its seventh season. Sam (Jared Padalecki) and Dean (Jensen Ackles) have spent their lives battling every kind of supernatural threat. Now, as civil war rages in Heaven above them and monsters gather to ravage the Earth, Sam and Dean stand united as brothers to face a new and unexpected threat.
In its third season, "Supernatural" continues tracking brothers Sam and Dean Winchester, who were raised to be soldiers. As they join other hunters traveling the country to find evil fugitives from Hell hiding in the darkest corners of America, they must also battle their internal demons.
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