Season 10 (2014-15)
Number of Episodes: 23
Intro: Season 10 of Supernatural begins with Sam’s frantic search for his missing brother, who is gone without a trace. The road to recovering the wayward Dean takes Sam down dark paths, with consequences that will shake the boys to their core. Meanwhile, Castiel has to pick up the pieces in the aftermath of Metatron’s campaign. With his grace failing and rogue angels still on the loose, Cass will face the ticking clock of his own mortality as all-new threats emerge to once again push all of our heroes to their limits.

Original Air Dates: October 7, 2014 to TBD 2015 at 9:00 PM ET/PT on The CW

Episode #: 1 (196)
Title: "Black"
Summary: 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 diminishing grace.

Episode #: 2 (197)
Title: "Reichenbach"
Summary: Crowley notices Dean is becoming more and more aggressive. Dean tells him that's the side effect of being a demon, but Crowley knows it's something more - the Mark of Cain needs to be fed. Meanwhile, Sam is captured by Cole, an angry man who blames Dean for his father's death years ago and wants revenge. Cole tortures Sam, hoping he'll tell him where Dean is hiding. Hannah sees how weak Castiel is becoming as his grace continues to fade, so she makes a bold choice and asks Metatron for help.

Episode #: 3 (198)
Title: "Soul Survivor"
Summary: Sam continues his efforts to save Dean from the Mark of Cain. Crowley realizes Dean's demonic antics are starting to cause problems for him in Hell so he searches out an unlikely ally -- Castiel.

Episode #: 4 (199)
Title: "Paper Moon"
Summary: There has been a recent series of werewolf attacks, and the evidence suggests that the perpetrator is Kate, a werewolf that Sam and Dean had showed mercy towards some time before, and they learn that Kate is surrounded by blackmail and deceit.

Episode #: 5 (200)
Title: "Fan Fiction"
Summary: A teacher has gone missing, and when Sam and Dean move in to investigate, they are stunned to see that the school is putting on a musical presentation based on the events of their lives.

Episode #: 6 (201)
Title: "Ask Jeeves"
Summary: Dean hears a shocking voicemail on Bobby's cell phone naming him the beneficiary in a will, so Dean talks Sam into investigating for some easy money, but what they find when they get there is far different from what they expected.

Episode #: 7 (202)
Title: "Girls, Girls, Girls"
Summary: Rowena returns and tries to recruit and train followers in the art of witchcraft, but Sam and Dean devise a plan to stop her. Meanwhile, Hannah runs into a blast from her vessel's past, which complicates things for her and Castiel.

Episode #: 8 (203)
Title: "Hibbing 911"
Summary: At a mandatory retreat, an irritated Jody Mills is partnered with an overzealous sheriff who just wants to be friends, but then a mutilated body is found, which the local sheriffs blame on an animal attack, but Jody is convinced otherwise.

Episode #: 9 (204)
Title: "The Things We Left Behind"
Summary: Castiel convinces Jimmy to break his daughter Claire out of the group home where she found her. Claire ends up running away, so Castiel asks Sam and Dean to help find her to keep her out of trouble. Crowley is faced with his biggest challenge yet.

Episode #: 10 (205)
Title: "The Hunter Games"
Summary: Dean, Sam and Castiel are so desperate to find a cure for the Mark of Cain that Castiel devises the worst idea that Sam has ever heard. Rowena plots against Crowley. Castiel tries to repair his relationship with Claire, who is plotting against Dean.

Episode #: 11 (206)
Title: "There's No Place Like Home"
Summary: Charlie returns from Oz and is seen on video beating up a district attorney. Dean suspects she is hunting on her own and that the D.A. must be a demon. When Sam and Dean find her, they are shocked to learn the real reason for her return.

Episode #: 12 (207)
Title: "About a Boy"
Summary: Sam and Dean investigate a case where people are vanishing and leaving their clothes behind, and the truth turns out to be more surprising than they suspect initially, as people are actually being turned into younger versions of themselves.

Episode #: 13 (208)
Title: "Halt & Catch Fire"
Summary: Sam and Dean try to stop a ghost who is taking revenge against a group of college students by killing people through various electronic devices.

Episode #: 14 (209)
Title: "The Executioner's Song"
Summary: Cain returns, and this forces Dean, Sam and Castiel to take action and deal with him. Crowley and Rowena continue to grow closer, but she unloads on him when he abandons his plans with her to help the Winchesters.

Episode #: 15 (210)
Title: "The Things They Carried"
Summary: Sam continues researching the cure for the Mark of Cain, ignoring directions by Dean. Dean and Sam cross paths with Cole, and the three discover that a Khan worm is turning men into murderers and that Cole has already been infected.

Episode #: 16 (211)
Title: "Paint It Black"
Summary: After a series of suicides by self-administered disembowelment, Sam and Dean investigate and discover each victim belonged to the same church and had recently given confession.

Episode #: 17 (212)
Title: "Inside Man"
Summary: Sam and Castiel check out a lead about the Mark of Cain; Dean and Rowena meet.

Episode #: 18 (213)
Title: "Book of the Damned"
Summary: Charlie calls Sam and Dean and tells them she found the Book of the Dead that could help remove the Mark of Cain. Unfortunately, a man who claims the book belongs to his family shoots her. Meanwhile, Castiel and Metatron take a road trip to find Castiel's grace, but the journey doesn't go as planned.

Episode #: 19 (214)
Title: "The Werther Project"
Summary: To help Rowena translate the Book of the Damned, Sam looks for a Codex. However, the Codex is sealed in a magical Werther Box created by Cuthbert Sinclair, and kills anyone who tries to open it.

Episode #: 20 (215)
Title: "Angel Heart"
?Summary: Castiel asks Sam and Dean to help find Claire find her mother, but when they learn what took the woman, they suspect a happy ending is impossible.

Episode #: 21 (216)
Title: "Dark Dynasty"
Summary: While investigating a strange murder, Sam and Dean discover the killer has the same tattoo as those from the Styne family. Castiel plays referee when Charlie and Rowena must work together. Crowley turns to an old enemy for help with Rowena.

Episode #: 22 (217)
Title: "The Prisoner"
Summary: Dean takes matters into his own hands regarding Stynes. Sam attempts to come to terms with his decision.

Episode #: 23 (218)
Title: "Brother's Keeper"
Summary: While Castiel gets caught in the middle when Crowley goes after Rowena, Dean calls upon a former ally for help.