Original air date: 10/03/2012 Runtime: 42:27 min. After a year apart, Sam and Dean are reunited in the eighth season premiere. After escaping from Purgatory (but not alone), Dean heads straight for Sam, but the reunion isn't exactly everything he imagined it would be. Although Sam drops everything to join his brother, leaving the life he had grown accustomed to enjoy turns out to be harder than he imagined. Together, the Winchesters go in search of the prophet Kevin Tran (guest star OSRIC CHAU) who has managed to escape the clutches of Crowley (guest star MARK A. SHEPPARD) and his minions, but things quickly escalate when Kevin tells them what it is that Crowley is after.
Original air date: 10/10/2012 Runtime: 41:41 min. Kevin’s mom, Mrs. Tran (guest star LAUREN TOM) joins Sam and Dean on the road. Checking in on Kevin’s mother, the Winchesters discover that Crowley has surrounded her with demons so they rescue her and take her along on their quest to find the tablet. They soon discover, however, that Kevin wasn’t kidding when he said his mother was a strong-willed woman after she tries to take on Crowley!
Original air date: 10/17/2012 Runtime: 40:41 min. 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. Series star Jensen Ackles directs.
Original air date: 10/24/2012 Runtime: 41:47 min. Sam and Dean investigate a bizarre murder in a college town. Close on the tail of their suspect, they bust into an apartment to find two dead bodies and a laptop cued up to some disturbing video footage. The footage begins with Brian (guest star LEIGH PARKER), Mike (guest star BRANDON W. JONES) and Kate (guest star BRITNI SHERIDAN) hearing about an unusual animal attack in their town and the rest of the story is revealed through their eyes. Sam and Dean become unknowing participants in a unique student film.
Original air date: 10/31/2012 Runtime: 42:24 min. After Dean’s vampire companion in Purgatory, Benny (guest star TY OLSSON) gets brutally beat up by his own kind, he calls Dean for help. Dean abruptly packs up and tells a confused Sam that he’s taking a “personal day.” Benny confesses that he’s going after his Maker (guest star PATRICK STAFFORD) so Dean offers to help, flashing back on the many times Benny helped him and Castiel in Purgatory. Meanwhile, Sam uses his solo time to reflect on the life he left behind with Amelia (guest star LIANE BALABAN). However, when things go bad for Dean and Benny, Dean summons Sam for help making everything very complicated.
Original air date: 11/07/2012 Runtime: 42:12 min. Investigating a murder, Sam and Dean find that Garth (guest star DJ QUALLS) is already on the case. While Dean's not happy to learn that Garth has assumed Bobby's duties, Garth points out that both Sam and Dean have been missing for the last year and someone needed to do it. They guys discover an avenging ghost is responsible for the murders and they need to find the source before the killings starts again.
Original air date: 11/14/2012 Runtime: 42:26 min. 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 (guest star CYRINA FIALLO) to concoct a demon bomb, but the witch double-crosses Mrs. Tran and turns her and Kevin over to Crowley.
Original air date: 11/28/2012 Runtime: 42:11 min. Castiel tells Sam and Dean that he's decided to become a hunter like them. Sam and Dean aren't sold on the idea but agree to investigate a case Cas found where a man's heart literally burst through his chest. The guys discover there has been more than one odd murder in the small town, and all of them resemble cartoon deaths!
Original air date: 12/05/2012 Runtime: 42:23 min. Sam and Dean are at odds after Sam asks a hunter named Martin (guest star JON GRIES) to keep an eye on Benny without telling Dean. However, when Martin tells Sam that Benny, might be responsible for a string of vampire-drained bodies in a small Louisiana town, Dean defends his friend. When Martin decides to take things into his own hands, things get messy and Dean is forced to make a very hard decision.
Original air date: 01/16/2013 Runtime: 42:29 min. Naomi (guest star AMANDA TAPPING) tells Castiel that Crowley is holding an angel captive and Castiel must rescue him before Crowley’s torture reveals their secrets. Castiel turns to Dean for help. Meanwhile, Sam reconnects with Amelia who asks him to make a choice: stay with her or leave and never contact her again.
Original air date: 01/23/2013 Runtime: 42:28 min. FELICIA DAY returns! Sam and Dean investigate the mysterious deaths of two LARPers (Live Action Role Players) who were engaged in a game entitled Moondoor. The guys are thrilled to discover the Queen of Moondoor is none other than Charlie Bradbury (guest star FELICIA DAY), their quirky hacker friend who helped them fight Dick Roman last season. The three learn that an actual fairy (guest star TIFFANY DUPONT) has been enslaved and commandeered to harm people – and the only way to stop her is to find her master, an overzealous participant in the game.
Original air date: 01/30/2013 Runtime: 42:15 min. Sam and Dean are stunned when a man who claims to be their grandfather, Henry Winchester (guest star GIL McKINNEY), suddenly appears in their hotel room demanding to know where he can find John Winchester. Henry has time-traveled to stop a demon named Abbadon (guest star ALAINA HUFFMAN) and was looking for John’s help. Through Henry, Sam and Dean learn more about their father and the Winchester blood line.
Original air date: 02/06/2013 Runtime: 42:29 min. Sam and Dean investigate the death of a Rabbi (guest star HAL LINDEN), who spontaneously combusted. The case becomes ever more confusing when they learn that the Rabbi was researching Nazi Necromancers. The Winchesters are attacked by a Golem (guest star JOHN DeSANTIS) who turns out to belong to the Rabbi’s grandson, Aaron (guest star ADAM ROSE). The key to the case lies with the Golem…but Aaron doesn’t know how to control him – leaving everyone in danger.
Original air date: 02/13/2013 Runtime: 42:27 min. Kevin finally deciphers the God 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 tests designed by God. The first one – kill a hellhound! Sam and Dean argue over who should complete the trials.
Original air date: 02/20/2013 Runtime: 42:23 min. Dean really doesn’t like witches! A police officer (guest star CHRISTIAN CAMPBELL), who turned to witchcraft after working a case with Sam and Dean, is plagued by nightmares in which he murders innocent people. However, when the murders actually happen, Sam and Dean are called in by the witch’s “familiar” (guest star MISHAEL MORGAN) to help – but the brothers aren’t sure they want to save a witch.
Original air date: 03/27/2013 Runtime: 41:44 min. Sam and Dean investigate some recent vampire kills and are surprised to learn that teenage hunter (and fan favorite) Krissy Chambers (guest star MADISON McLAUGHLIN) is involved. They find Krissy and learn her father was killed and trhat she’s been taken in by a man named Victor (guest star ADRIAN HOUGH) – who has taken in a group of orphan kids to teach them how to hunt. Victor is helping the teenagers find the vampires who took their parents so they can get revenge. While Sam is intrigued by Victor’s method of giving the teenagers a home life as well as a hunting life, Dean is suspicious of Victor’s motives.
Original air date: 04/03/2013 Runtime: 42:19 min. Sam and Dean respond to a call from Kevin, who is terrified because he’s hearing Crowley’s voice in his head. After hearing Kevin’s news, Sam and Dean team up with reaper named Ajay (guest star ASSAF COHEN), who helps them deal with the second trial from the Tablet. Meanwhile, Dean receives a visit from the angel Naomi and realizes he must find his Purgatory friend Benny and ask for a huge favor.
Original air date: 04/24/2013 Runtime: 42:14 min. 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 (returning guest star FELICIA DAY) stumbles upon a case and finds the boys, Dean decides it’s time to teach Charlie how to be a hunter-in-training. While happy to see “her highness,” the boys suspect Charlie is hiding something – a secret that could get her killed.
Original air date: 05/01/2013 Runtime: 42:15 min. When Sam and Dean receive a distressing video message from Kevin Tran, they set about trying to uncover the Third Trial. The boys make a discovery that sends them to a casino in Colorado, to find a mysterious recluse (guest star CURTIS ARMSTRONG) who may be able to fill in the holes in Kevin's research. And while Crowley is on a winning streak, Castiel tries to elude Naomi and the angels hunting him.
Original air date: 05/08/2013 Runtime: 42:07 min. As the Third Trial nears, Sam and Dean reunite with Castiel. Digging through the Men of Letters’ files, they stumble upon an undiscovered film, which could be the key to the third trial. Metatron (CURTIS ARMSTRONG) enlists Cass to mull over problems at home in Heaven – but things are not what they seem. Meanwhile, Crowley digs up some familiar faces from Sam and Dean's past.
Original air date: 05/15/2013 Runtime: 42:17 min. What must Sam, Dean and Castiel sacrifice in order to forever seal the gates of Hell? 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 Winchester brothers bound into one last play against The King of Hell. Meanwhile, Metatron initiates a plan with Castiel to take on Naomi and the bureaucracy of Heaven.