23 Episodes 2014 - 2015
The 10th season of this supernatural series begins with Dean (Jensen Ackles) enjoying life as a demon with Crowley (Mark A. Sheppard). However, Dean grows more aggressive when the Mark of Cain is not fed. Meanwhile, Sam (Jared Padalecki), oblivious to his brother's state, is desperately searching for him and, upon learning his fate, attempts to return him to human form. Additionally, the brothers continue hunting supernatural beings and face the goddess Calliope when she brutally forces a school to perform a musical about the brothers' lives. Also, they become murder suspects while investigating a shape shifter and take on an old foe who resurfaces. Elsewhere, Castiel (Misha Collins) is on the verge of death, but does not want to be saved by evil means. This leaves Hannah (Erica Carroll) in a quandary as she tries to help him.
Tue, Oct 7, 2014 60 mins
Season 10 begins with Dean enjoying life as a demon and carousing with Crowley. Meanwhile, Sam tries to figure out what happened to his brother; and Castiel deals with his diminishing grace.
Tue, Oct 14, 2014 60 mins
Dean becomes more aggressive as a demon, and Crowley tells him it's because the Mark of Cain needs to be fed. Meanwhile, Sam is captured by an angry man who blames Dean for his father's death and wants revenge; and Hannah asks Metatron for help when Castiel's grace continues to fade.
Tue, Oct 21, 2014 60 mins
Sam tries to release Dean from the Mark of Cain. Meanwhile, Crowley seeks the help of an unlikely ally after encountering problems due to Dean's behavior.
Tue, Oct 28, 2014 60 mins
A series of werewolf attacks points to Kate, the werewolf Sam and Dean let live.
Tue, Nov 11, 2014 60 mins
Sam and Dean investigate the disappearance of a teacher and are stunned to learn that the victim's school is putting on a musical based on their lives. The 200th episode of the series.
Tue, Nov 18, 2014 60 mins
Dean learns that Bobby or his next of kin have been named as a beneficiary in an heiress' will, so he convinces Sam to take a road trip with him to claim their fortune. But when they arrive, things aren't quite as they had hoped or imagined.
Girls, Girls, Girls
Tue, Nov 25, 2014 60 mins
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.
Tue, Dec 2, 2014 60 mins
Jody Mills reluctantly attends a mandatory sheriff's retreat and is partnered with an overeager sheriff who wants to bond. Even worse, a body with just strings of meat and skin hanging off the bones is discovered. Jody calls Sam and Dean for help.
The Things We Left Behind
Tue, Dec 9, 2014 60 mins
Castiel finds Jimmy's daughter Claire in a group home and she convinces him to break her out. After she runs away from him, Castiel calls Sam and Dean to help find her before she gets into trouble. Meanwhile, Crowley faces his biggest challenge.
The Hunter Games
Tue, Jan 20, 2015 60 mins
Sam and Dean double their efforts to find a cure for the Mark of Cain, after the massacre at the ranch. Meanwhile, Rowena plots against Crowley; and Castiel tries to mend his relationship with Claire, who is bent on revenge against Dean for killing her friend.
There's No Place Like Home
Tue, Jan 27, 2015 60 mins
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.
About a Boy
Tue, Feb 3, 2015 60 mins
Sam and Dean investigate when people suddenly disappear into thin air with only their clothes left behind. Their probe reveals that Hansel, from Hansel and Gretel lore, is kidnapping people and turning them into their younger selves to placate an evil witch. Unfortunately, Dean finds the information out the hard way when he becomes Hansel's next victim and reverts to being his 14-year-old self.
Halt & Catch Fire
Tue, Feb 10, 2015 60 mins
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.
The Executioner's Song
Tue, Feb 17, 2015 60 mins
Dean, Sam and Castiel deal with Cain's return. Meanwhile, Crowley and Rowena continue to grow closer, but Rowena confronts him when he bails on plans with his mother to help the Winchesters.
The Things They Carried
Wed, Mar 18, 2015 60 mins
Sam and Dean team up with Cole to investigate a new murder case. Their probe reveals that a Khan worm is infecting men and turning them into killers. Unfortunately, the worm makes it's way into Cole.
Paint It Black
Wed, Mar 25, 2015 60 mins
Sam and Dean investigate a series of suicides committed by people who all killed themselves with self-administered disembowelment. The probe reveals the victims were all members of a Catholic church and had recently given confession. Meanwhile, Crowley captures Olivette, the leader of the Grand Coven; and Rowena pleads her case to once again be allowed to practice magic freely.
Wed, Apr 1, 2015 60 mins
Sam and Castiel check out a lead about the Mark of Cain; Dean and Rowena meet.
Book of the Damned
Wed, Apr 15, 2015 60 mins
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.
The Werther Project
Wed, Apr 22, 2015 60 mins
Sam searches for a magical box built by a former Men of Letters that may be able to cure Dean of the Mark of Cain. But the box contains a deadly alarm system that puts the brothers' lives in danger.
Wed, Apr 29, 2015 60 mins
Castiel tries to help Claire Novak find her mom who has been missing for years. He feels guilty for what he did to the Novak family and wants to make amends by reuniting Claire with her mother.
Wed, May 6, 2015 60 mins
Sam and Dean investigate a bizarre murder and realize the killer has the same tattoo as those from the Styne family. Meanwhile, Castiel acts a referee when Charlie and Rowena are forced to work together on the Book of the Damned; and Crowley discovers his mother is missing, so he turns to an old enemy for help.
Wed, May 13, 2015 60 mins
Dean decides to take matters into his own hands when it comes to the Stynes; and Sam tries to come to terms with his decision.
Wed, May 20, 2015 60 mins
Season 10 ends with Dean making a shocking decision regarding the Mark of Cain that may change not only his life but Sam's too. Meanwhile, Crowley and Rowena face off, and Castiel gets caught in the middle.