Supernatural (2005–) 
Two brothers follow their father's footsteps as "hunters" fighting evil supernatural beings of many kinds including monsters, demons, and gods that roam the earth.
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Supernatural: Brother's Keeper Season 10, Episode 23
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.
Supernatural: The Prisoner Season 10, Episode 22
Sam and Dean say good-bye to another member of their "family" with a hunter's funeral. Dean hunts down the Stynes to get revenge. When Sam realizes he has new information, he continues to work on trying to find a cure to the Mark of Cain through the Book of the Damned. Rowena renegotiates the terms of her deal with Sam.
Supernatural: Dark Dynasty Season 10, Episode 21
When Rowena seems to be getting nowhere on decoding the Book of the Damned, Sam brings in Charlie and Castiel to help. The Styne family continues their search for the Book of the Damned. While Dean researches the Stynes, he comes upon a case for him and Sam.
Supernatural: Angel Heart Season 10, Episode 20
Claire Novak returns to Supernatural in search of her mother. When she gets injured, Castiel arrives at the hospital with the Winchesters.
Supernatural: The Werther Project Season 10, Episode 19
Sam and Dean pursue cases independently, each for their own reasons. [more inside]
Supernatural: Book of the Damned Season 10, Episode 18
Charlie returns with some potentially good news for Dean. Sam and Dean are increasingly at odds about how to deal with the Mark of Cain. [more inside]
Supernatural: The Things They Carried Season 10, Episode 15
Sam continues to look for ways to deal with the Mark of Cain, but Dean just wants to work cases and accept that he may not be able to change his fate. The Winchesters travel to an army base in Fayetteville, NC to investigate an unusual death, when an old foe appears.
Supernatural: Paint it Black Season 10, Episode 16
Rowena is stirring up trouble in Hell, so Crowley brings her an unexpected gift to appease her. The Winchesters pursue a case in which church members are dying suspiciously. Dean meets a "hot" nun.
Supernatural: Inside Man Season 10, Episode 17
Sam and Castiel hatch a plan to get some Heavenly help for Dean. Dean has a night off that doesn't go quite as he expected. Rowena continues to scheme and berate Crowley.
Supernatural: The Executioner's Song Season 10, Episode 14
Yay! Timothy Omundson as Cain is finally back, and he's killing other killers! [more inside]
Supernatural: Halt & Catch Fire Season 10, Episode 13
A series of deaths, connected to various electronic devices, begin to occur in Spencer Iowa. The Winchesters arrive on campus to investigate, and enjoy the food offering of the campus. [more inside]
Supernatural: About a Boy Season 10, Episode 12
The Winchesters investigate a case where people vanish into thin air, leaving only their clothes behind. Unfortunately, Dean becomes a victim himself. [more inside]
Supernatural: There’s No Place Like Home Season 10, Episode 11
Dean starts on a new health regimen to help keep his dark side in check. Sam and Dean continue to search for a way to remove the Mark of Cain. While researching, Sam finds a video of Charlie Bradbury (Felicia Day) beating up a district attorney. Believing there must be some explanation for Charlie's unusual behavior Sam and Dean begin to look into what happened.
Supernatural: The Hunter Games Season 10, Episode 10
Dean remains affected by the Mark of Cain and he fears continuing down that dark path. After having exhausted their efforts to find a cure in the lore, in desperation Castiel reaches out to an unlikely source for help. Castiel is also trying to find a way to help Claire, despite her anger and rejection of him. Crowley and his mother Rowena spend a little time together in hell.
Supernatural: The Things We Left Behind Season 10, Episode 9
Castiel attempts to reconnect with Claire Novak, the troubled daughter of his human vessel. Meanwhile, Rowena (she of the World's Greatest Accent) tries to get back in Crowley's good graces.
Supernatural: Hibbing 911 Season 10, Episode 8
Sheriff Jody Mills is forced to attend a sheriff's retreat and teams up with Sheriff Donna Hanscum when mostly consumed bodies start piling up in town. [more inside]
Supernatural: Girls, Girls, Girls Season 10, Episode 7
After a couple of monster of the week episodes we seem to be returning to this season's arc. The Winchester boys aim to break up a demonic bordello but stumble across a powerful witch named Rowena instead. [more inside]
Supernatural: Ask Jeeves Season 10, Episode 6
The Winchester boys are surprised to discover that the late Bobby Singer has been named a beneficiary in an heiress' will. When they show up for the reading of the will they're even more surprised to discover themselves in a deadly game of "Clue".
Supernatural: Fan Fiction Season 10, Episode 5
Fan Fiction is the 200th episode of Supernatural. Dean wants to get back to hunting and convinces Sam to pursue a case about a missing teacher at a private all-girls school. Upon arriving at the school they find the students putting on a musical about a topic that hits a little too close to home for the Winchester boys. The musical is headed by a very determined student Director/Writer who has a very particular take on the story, despite Dean's protestations.
Supernatural: Paper Moon Season 10, Episode 4
Dean's and Sam's down time is cut short by reports of violent and fatal animal attacks happening in the area. A short investigation later, and it appears that a werewolf is on the prowl for human hearts and the evidence provided indicates that the werewolf may well be someone from the Winchester brothers' past. In the midst of the hunt, the brothers attempt to come to terms with the recent events of Dean's demonhood and Sam's relentless efforts to find him. [more inside]
Supernatural: Soul Survivor Season 10, Episode 3
Dean is a demon. To attempt a cure, Sam shoots him up with human blood. Cas and Hannah drive to a convenience store in the middle of nowhere. Crowley wades through red tape in Hell.
Supernatural: Reichenbach Season 10, Episode 2
Sam Winchester continues the search for his brother, Dean, and receives a tip from an unexpected ally on where to find him. Relations between Dean and Crawley, the once and desired future king of Hell, begin to break down as Dean fails to respect the concepts of contract law. The angels, Hannah and Castiel, head off together to meet up with Sam to find Dean, and both are tempted by Metatron who offers something of impossible value at an impossible price. [more inside]
Supernatural: Black Season 10, Episode 1
Sam searches high and low for the newly demonic Dean, who is having a grand old time, singing karaoke with best friend Crowley. Meanwhile, an ailing Castiel is asked by Hannah to help her "convince" two fallen angels to return to Heaven