T.V. Series Review: Supernatural Season 10

Supernatural Season 10 Trailer

Supernatural Season 10 Summary

Season 10, Episode 1: Black

n the six weeks that have passed since the ending of the ninth season, the now-demonic Dean (Jensen Ackles) has been living it up with his new friend Crowley (Mark A. Sheppard)—partying at bars, singing bad karaoke, and sleeping with a waitress. Meanwhile, Sam (Jared Padalecki), oblivious to Dean’s state, has been searching desperately for his missing brother. He eventually finds out the truth from Crowley after investigating the death of an Abaddon loyalist whom Crowley had purposefully sent to his death by attacking Dean. Crowley confesses that he has been sending Abaddon loyalists after Dean to sate Dean’s bloodlust. Sam tracks Dean and Crowley to Beulah, North Dakota, but gets ambushed by an unknown man (Travis Aaron Wade) who is also looking for Dean. Dean gets a call from the man, who demands that Dean trade himself for Sam’s life. However, Dean doesn’t care about his brother anymore, refuses the deal, and hangs up, leaving Sam in the kidnapper’s hands. Elsewhere, a dying Castiel (Misha Collins) is approached by Hannah (Erica Carroll), one of his followers in the previous season, for help tracking down Daniel and Adina (Jud Tylor), two rogue angels who refuse to return to the restored Heaven, instead wanting the freedom that life on Earth gives them. While Castiel is understanding towards the couple, Hannah is not, and a fight ensues that results in Castiel having to kill Daniel to save Hannah. Afterward, Hannah reveals that she doesn’t like the idea of angels taking on human values, as she fears it would lead to chaos. Castiel, however, thinks it’s a good idea.

Season 10, Episode 2: Reichenbach

Sam’s kidnapper reveals that his name is Cole and the reason he’s hunting Dean down is because Dean killed his father twelve years ago. He tries to torture Sam for Dean’s location, but Sam escapes after warning Cole that Dean is a monster. It is later revealed that Cole has let him escape, and follows him to Dean. Meanwhile, Crowley and Dean have a falling out after Dean refuses to follow Crowley’s orders and embarrasses him in front of his demon subjects. Realizing that the situation has gotten out of his control, Crowley contacts Sam with Dean’s whereabouts to have Sam handle his brother. Sam offers to help Dean become human again, but Dean is uninterested, having found a kind of liberty in being a demon and in not caring anymore. Cole then ambushes the brothers and takes Dean on in a fight, but is easily defeated. Dean leaves him alive so that he will have to live with the shame of having been unable to avenge his father. Sam seizes the opportunity to capture the distracted Dean. In return for Crowley’s help, Sam gives him the First Blade. Cole, having learned about Dean’s demonic nature, starts researching the supernatural, still determined to take revenge on Dean. Elsewhere, Hannah goes to visit Metatron (Curtis Armstrong) in his prison, in the hopes of making a deal to save Castiel’s life, but Castiel manages to stop her, insisting that she respect his choice not to save himself through evil means.

Season 10, Episode 3: Soul Survivor

Castiel and Hannah continue their journey towards the bunker with Castiel growing weaker all the time. At a gas station, they are attacked by a vengeful Adina, and a weakened Castiel is left near-death. Before Adina can kill the two angels, Crowley, having problems with ruling Hell due to his time with Dean, kills Adina and steals her grace. Crowley gives a reluctant Castiel Adina’s grace, restoring him to full strength. In return, Crowley asks Castiel to deal with Dean. Having captured Dean, Sam begins the process of curing him using the ritual they discovered a year and a half before. As the ritual goes on, Dean taunts Sam over his desperate attempts to find him, including tricking a man into selling his soul so he could interrogate a crossroads demon. Unbeknownst to Sam, the ritual makes Dean human enough that he is able to escape, and he stalks Sam throughout the bunker. However, Castiel finally arrives and subdues Dean. They are able to successfully complete the ritual and Dean is returned to being human, but retains the Mark of Cain. Castiel suggests that a guilty-feeling Dean take some time off as things are quiet, however, in Tulsa, Oklahoma, a mysterious red-haired woman (Ruth Connell) sits in a hotel room under two men staked to the ceiling.

Season 10, Episode 4: Paper Moon

Following Dean becoming human again, he and Sam have taken a break from hunting, until they find what seems to be a werewolf case in Durham, Washington. Investigating, they find Kate, the werewolf they had let go two years previously, and believe her to be the killer. As they prepare to kill her, they get a call that there is another murder that Kate couldn’t have committed, meaning another werewolf is responsible. Sam and Dean trace Kate’s last call and discover that the real killer is Kate’s sister Tasha, whom Kate had turned, in order to keep her from dying of fatal injuries from a car accident. Unlike Kate, Tasha has embraced her monstrous instincts and started killing. Dean tricks Kate into leading them to her sister, but Tasha reveals that she now has a “pack” consisting of two men she has turned, and has the boys captured. She invites Kate to join the pack as well if Kate kills Sam and Dean, but Kate refuses. Realizing that the sister she knew is lost to her, Kate kills Tasha before making her escape. Sam and Dean kill the two remaining werewolves. At the end of the episode, Dean accepts that he’s not ready to get back into hunting yet, but feels he has to, as he wants to do good after doing so much bad.

Season 10, Episode 5: Fan Fiction

Still fixed on going out on hunts, Dean insists that he and Sam look into the disappearance of a teacher in Flint, Michigan. They are shocked to discover that the school musical that the teacher had been planning to shut down is based on the books that they’d discovered in the fourth season which had been written about their lives by former prophet Chuck Shurley. When a student also disappears after she, too, quit with plans to shut down the musical, Sam and Dean eventually realize that the goddess Calliope is behind this as she wants the musical to be completed, at which point she will eat the writer, Marie. When trying to catch Calliope before she can get Marie, Sam gets captured by her. Meanwhile, Dean must battle a scarecrow creation of hers. Sam is able to kill Calliope with the help of the student and the teacher she had kidnapped, causing her and her scarecrow to explode. The latter explosion is witnessed by the audience, who applauds, believing that it to be special effects. Marie gives Dean a prop version of his old amulet, a symbol of his brotherhood with Sam, which he had thrown away in the fifth season when he had lost faith in Sam. Dean ends up hanging it on the Impala’s mirror. After the brothers leave, Marie is greeted by Chuck (Rob Benedict) who congratulates her on the musical.

Season 10, Episode 6: Ask Jeeves

Finding Bobby’s old cellphone in the Impala, Dean discovers he has inherited something from a rich heiress in New Canaan, Connecticut, and he and Sam decide to claim it as his next of kin. However, they get caught up in a murder mystery when what appears to be the ghosts of the heiress and her long-dead husband start murdering people. Things get complicated when they discover they aren’t dealing with ghosts, but a shape-shifter. After a cop is murdered, Sam and Dean become the prime suspects and are locked up. Meanwhile, the maid Olivia reveals herself to be the shape-shifter. She explains she is the heiress’ illegitimate daughter from an affair with a shape-shifter. Her real father tried to claim her but was killed by Bobby, who agreed to spare Olivia in exchange for her being locked up for everyone’s safety. Bobby was to take care of Olivia if anything happened to her mother. After the death of her mother, her butler, the only other one to know the truth, released Olivia out of pity and gave her a job as a maid. However, she is disgusted with her family’s greed and wants them dead. Sam and Dean manage to break free and Sam and Olivia engage in a deadly game of cat and mouse which ends when Dean shoots her dead while she’s distracted. However, possibly under the influence of the Mark of Cain, Dean unloads several more rounds into her body, worrying Sam. The family agrees to keep the Winchesters’ presence a secret and Sam and Dean find out that Bobby only inherited the key to the attic where Olivia was locked up.

Season 10, Episode 7: Girls, Girls, Girls

After Dean discovers his date from a dating app is helping demons make deals, Sam and Dean investigate a demonic brothel. Before they can get there, the witch Rowena gets there first and kills Raoul, the demon in charge and recruits the hookers as her apprentices. She explains that she was thrown out of the Grand Coven a long time ago and now wants to regain her power. Sam and Dean track her to a fancy hotel, but have to face Crowley’s demons and one of the girls after Crowley catches up before they can. Dean captures Rowena, but is confronted by Cole who forces Dean to let her go. Dean defeats Cole but instead of killing him, tells him the truth about what happened: Cole’s father was an unknown type of monster Dean had been hunting who had been eating livers. Cole is reluctant to accept the truth, but Dean convinces him to let go of his vendetta and return to his family. At the same time, Castiel and Hannah continue to track down rogue angels but are found by the husband of Hannah’s vessel, Caroline. Hannah decides to return to Heaven so Caroline can return to her family and Castiel brings her home and looks up his own vessel. While Rowena escaped Sam and Dean, demons working for Crowley catch her and he is shocked to see her, as Rowena is his mother.

Season 10, Episode 8: Hibbing 911

Sheriff Jody Mills (Kim Rhodes) goes to a sheriff’s retreat in Hibbing, Minnesota where she meets Sheriff Donna Hanscum (from “The Purge”) who is overeager and friendly. However, bodies start appearing with everything eaten and Jody calls in Sam and Dean while investigating herself with help from a clueless Donna. Donna finds out the truth after finding local sheriff, Len, standing over another cop with vampire fangs out. Sam and Dean learn that Len has been hiding evidence of the strange murders and are forced to tell Donna the truth. With Donna’s help, the Winchesters track Len to a farmhouse where they are captured by a group of vampires led by Star. Star explains that Len used to be their leader who taught them to consume everything, not just blood before growing a conscience and working to protect humans instead of hurting them. After Len refuses to kill the hunters, Star kills him, but Dean manages to break free and kill two of the three vampires. Donna breaks free as well and kills Star when she tries to harm Jody. Afterwards, Jody offers to teach Donna about hunting while Dean tells Sam that for once it felt like the Mark of Cain wasn’t fueling his actions, that he was himself for the first time in awhile.

Season 10, Episode 9: The Things We Left Behind

Feeling guilty about what he did to his vessel and his family, Castiel tracks down Claire Novak in a group home in Pontiac, Illinois. He breaks her out, but she runs off, so he calls in Sam and Dean to help locate her. They find her trying to rob a convenience store to help the man she lives with, Randy, pay off his debts to a loan shark. After blaming Castiel for everything that’s happened to her, Claire runs off to Randy, who sells her to the loan shark to settle his debts. Castiel rescues her, but under the influence of the Mark of Cain, Dean slaughters Randy, the loan shark, and all his men, something he previously had a nightmare about. At the same time, Rowena attempts to reach out to Crowley, failing until she turns him against one of his own men and Crowley kills him to save her.

Season 10, Episode 10: The Hunter Games

Needing to get the Mark of Cain off of Dean, Castiel has Metatron brought down from Heaven so that he and the Winchesters can question him, seeing Metatron’s knowledge as their only hope. Metatron agrees to tell them and tells them that they need the First Blade which Crowley has hidden. Sam and Dean meet with Crowley who reluctantly agrees to retrieve the Blade from a crypt in Guam, but later tells them that he will only give it to them once they have the rest of the spell. Dean demands Metatron give them the rest, but he states that he will want something for each bit of information and there is a lot. Metatron taunts Dean into attacking him, causing him to fall further and further under the Mark’s influence. Dean comes close to killing Metatron, but is stopped by Sam and Castiel who takes Metatron back to Heaven rather than risk his life. However, Metatron leaves a possible clue for them to mull over: “the river ends at the source.” Sam suggests that part of beating the Mark’s power involves Dean actually fighting it like Cain did rather than embracing it. At the same time, Rowena plots against Crowley, using a spell to induce a nightmare and spy on Crowley’s meeting with the Winchesters. Rowena sends a demon named Gothrey to get the First Blade then kills him, but when Crowley walks in on her, she twists the situation to her advantage, making him suspicious of the Winchesters and causing him not to give them the Blade. During this time, Castiel tries to help the daughter of his vessel, Claire Novak, but she refuses his help and meets up with a couple who suggest she kill Dean since he was responsible for the deaths of both her fathers. Claire lures Dean into a trap, but ultimately can’t go through with it and warns him of the attack. Dean defeats the couple, but rather than give into the Mark’s rage, lets them go. Castiel later finds Claire who has decided to find a new life away from him, but promises to keep in touch.

Season 10, Episode 11: There’s No Place Like Home

While looking for clues on how to remove the Mark of Cain, Sam finds a video of Charlie Bradbury (Felicia Day) beating a district attorney. Believing that Charlie may be working a case as this was not the only person she attacked, Sam and Dean investigate and discover that the DA was involved in a cover-up of the deaths of Charlie’s parents in a drunk driving accident. Tracing a woman involved, they find a dark Charlie who flees after slashing the Impala’s tire and beating up Dean. To their surprise, another Charlie shows up and explains that in order to win the war in Oz, she made a deal with the Wizard of Oz to split herself into her good and dark sides. Killing Dark Charlie will kill her; she can’t return to Oz to ask the Wizard for help, as Dark Charlie broke the Key to Oz. Sam and Charlie investigate the Key for a way to fix it, while Dean tries to protect Russell Wellington (Barclay Hope), the man who killed Charlie’s parents. However, Dark Charlie tricks Dean and kills Russell anyway. She then leaves with the Impala to find Sam and Charlie, as they discover a former Man of Letters named Clive Dylan who could help them. Clive helps them summon the Wizard who is his dark side, so they can force the Wizard to reverse the split. While Sam and Charlie confront the Wizard, Dean fights Dark Charlie and brutally beats her. In order to stop the Wizard, Charlie kills Clive which kills the Wizard too. Sam stops Dean from killing Dark Charlie and they are able to reverse the split. In the aftermath, Charlie is unable to return to Oz and so dedicates herself to helping get rid of the Mark of Cain, forgiving Dean for his actions. However, he refuses to forgive himself.

Season 10, Episode 12: About a Boy

Dean locks himself in the Bunker for a week researching the Mark of Cain, until Sam convinces him to investigate a case in Pendleton, Oregon where a man disappeared in a flash of light. While at the bar looking for clues, Dean meets a woman named Tina who he spends the day talking to. When Tina leaves, he notices a man following her, then she too disappears in a flash of light. When Dean investigates, the man uses a hex bag on him. Dean then finds himself locked in a cell and at the age of fourteen (Dylan Everett) with a teenage Tina in the cell next to him. With the help of Tina, Dean escapes and returns to a stunned Sam, who has determined that they are dealing with a witch after finding yarrow at the bar where Dean disappeared. Sam and Dean return to the witch’s house where they find Tina gone, and they capture the man who reveals himself to be Hansel of Hansel and Gretel (Mark Acheson). He explains that Hansel and Gretel was a true story, only the story had a happy ending, while in reality he was forced to help the witch Katja (Lesley Nicol) eat children for centuries and eat Gretel’s heart when they tried to escape. Hansel tells them how to reverse the spell and offers his help in stopping Katja. However, when Sam and Dean try to kill her as she prepares to eat Tina, Hansel reveals himself as evil and disarms them. They are stunned when Katja reveals that she has been sent by the Grand Coven to stop Rowena, but they fight her and Hansel before they can learn anymore. They lose, but Dean manages to get Hansel’s hex bag and reverse the spell on himself. Returned to his usual self, Dean quickly kills Hansel and cooks Katja in her own oven. Afterwards, they are unable to revert Tina to normal as the hex bag burned with Katja. However, when the brothers offer to recreate the spell for her, Tina refuses, as she sees this as a second chance since she has so far had a bad life. After dropping Tina off at the bus station, Sam and Dean contemplate the information about the Grand Coven and the return of the Mark, which had disappeared when Dean was a teenager.

Season 10, Episode 13: Halt & Catch Fire

Sam and Dean investigate a case in Spencer, Iowa where a truck mysteriously drove itself off a bridge, killing its driver, Billy. Believing it to be the ghost of Billy’s dead brother, Sam and Dean salt and burn the truck, but soon afterwards, a girl named Julie is strangled by her own computer cord after getting threatening messages on the Internet. Following the clues in the message leads them to a man named Andrew Silver who died in a car accident, but they are unable to put him to rest as he was cremated and doesn’t seem to be attached to anything. After a boy named Kyle is killed, they confront his friend Delilah who reveals that the four were involved in the accident where they caused the crash and didn’t try to save Andrew after his car was set on fire by electrical wires. Sam and Dean realize that Andrew is after revenge and is in the Internet, having used the power wires to access a nearby Wi-Fi tower when he was killed. Dean protects Delilah from Andrew while Sam talks to his wife, Corey, who admits she knew he was there and didn’t want to let him go. When Dean is unable to stop Andrew or convince him to move on, Corey speaks to him through FaceTime and convinces Andrew to let go of his revenge and be at peace. Afterwards, Delilah visits Corey to tell her what really happened to her husband. Meanwhile, Dean decides that while he won’t give up fighting the Mark of Cain, but he won’t continue looking for a cure.

Season 10, Episode 14: The Executioner’s Song

Sam and Dean learn that Cain has kidnapped a serial killer named Tommy Tolliver while at the same time, Castiel discovers a graveyard full of Cain’s victims. Cain confronts Castiel, revealing that he has fallen back under the influence of the Mark of Cain and is now slaughtering his descendants, thinking his bloodline is tainted. In order to stop Cain, Dean calls upon Crowley to give him the First Blade, lying to him that Cain wants Crowley dead. As a result, Crowley blows off his mother Rowena’s wish to kill a witch of the Grand Coven to help the Winchesters. Working together, the four trap Cain in a devil’s trap when he arrives to kill his next victim, a twelve-year-old boy. Dean confronts Cain alone who tells him there is no cure for the Mark of Cain, and it’s just better to give into its power. Dean and Cain fight, but Dean loses as he holds back in fear of losing his humanity. However, he eventually manages to get the upper hand and asks if Cain will give up killing again. Upon Cain’s declaration that he won’t, Dean kills him, devastated by the fact that there seems to be no way out for him. Despite his fears, Dean manages to keep control of himself, but gives Castiel the First Blade instead of Crowley as he promised, shocking Crowley with his lies. Rowena later tells Crowley that he’s not a king anymore and is nothing but the Winchesters’ lap dog. Sam expresses the belief that if Dean could kill Cain himself without losing his humanity there is still hope for him, while he privately tells Castiel that Dean’s in trouble.

Season 10, Episode 15: The Things They Carried

Dean finds a case in Fayetteville, North Carolina where a man named Rick drains a woman of blood and later commits suicide. Suspecting it to be a rugaru or a pagan god, Sam and Dean check it out and find out that a friend of the killer, Kit, is displaying the same symptoms. While investigating, they run into Cole Trenton, the man who had tried to kill Dean who is a friend of Kit and was looking into his actions himself. Reluctantly, the Winchesters and Cole team up together to try to find Kit who displays an unnatural thirst, draining multiple water bottles and killing a man and drinking his blood. Using his contacts, Cole is able to learn that Kit and Rick were recently involved in a rescue mission in Iraq where the man they rescued attacked them and was killed. Cole tracks Kit to a cabin where Kit attacks and infects Cole with a khan worm (from season 6’s “And Then There Were None”) before running off. Sam and Dean realize that the rescued soldier on Kit and Rick’s last mission must have infected them and Sam sets out to track down Kit while Dean tries to save Cole. When electricity doesn’t work, Dean and Cole realize that dehydration might and turn the cabin into a sweat lodge. Eventually the worm comes out and Dean kills it, however, Sam is unable to save Kit and kills him in self-defense. Cole returns to his family with a new understanding of what Sam and Dean do and what happened to his father while Sam feels immense guilt for his inability to save Kit.

Season 10, Episode 16: Paint it Black

Sam and Dean investigate a case in Worcester, Massachusetts where three men were horribly killed in two weeks, two by suicide and one by his wife murdering him. However, the wife has no memory of the murder so they believe it to be a case of ghost possession, as there is no sign of a demon and it doesn’t fit the way they do things. The only connection they can find between the victims is that they all went to confession, so Dean visits confession in hopes of drawing the ghost out. In the process, he admits that although he’s always thought he’d die hunting, he feels as though that time is approaching, and he’s not ready for it. It’s revealed that the ghost is that of a nun named Isabella who in 1520 fell in love with an artist named Piero who didn’t love her back, so she was sent to a convent by her family to deal with her grief. Another nun, Sister Mathias, who has been talking with Isabella, overhears Sam and Dean talking about what’s been happening. She reads Isabella’s journal to learn that Isabella killed Piero after finding him in bed with another woman. She alerts Sam and Dean. Dean orders Sam to burn the journal, believing Isabella to be tied to it, because she was burned at the stake as a witch due to the horrific nature of her crime. While Dean tries to fight off Isabella possessing Sister Mathias, Sam reads the journal and learns that Isabella’s blood and part of her finger were used to create the painting Piero made of her. Sam salts and burns the painting, destroying Isabella. Later, Sam tells Dean that he truly believes that there is a cure for the Mark of Cain and they need to keep searching, but Dean is unenthusiastic about it. At the same time, Crowley captures Olivette, High Priestess of the Grand Coven, for Rowena to make her case in order to practice magic freely once more. Olivette reveals that the Grand Coven was devastated by the Men of Letters and is actually very weak now. She explains that the Men of Letters plundered the Coven’s spells and potions then hid them in bunkers across the world, and the only known surviving Men of Letters are Sam and Dean. In response, Rowena turns Olivette into a hamster and uses Crowley’s relationship with Sam and Dean in hopes of getting at the plunder.

Season 10, Episode 17: Inside Man

After Dean has a nightmare of all the carnage he has caused under the Mark’s influence, Sam searches out a cure on his own with the help of Castiel while lying to Dean about what he is doing. Knowing the only one with possible knowledge of a cure is Metatron, Sam and Castiel attempt to get him from Heaven, but are barred from entering by Hannah (Lee Majdoub) as Metatron is too dangerous to be let loose. Desperate, Sam and Castiel enlist the help of a psychic to contact Bobby Singer (Jim Beaver) in Heaven to break Metatron out. Bobby is able to get Castiel in and Metatron out, but he is last seen being approached by Hannah and several other angels to be punished for his actions. On Earth, Castiel removes Metatron’s grace, making him human. Under threat of death, Metatron admits he lied before and is actually unaware of a cure for the Mark. To stop Sam from killing him, Metatron admits that there is some of Castiel’s grace left. He offers to lead him to it in exchange for his life. Reluctantly, Castiel agrees and drives off with Metatron to find it. At the same time, Dean cools off in a bar hustling pool, where Rowena attempts to kill him with a spell and three men under her control. Dean is able to beat the men, and the Mark makes him immune to the spell, but he lets her go to save the men’s lives. Rowena tries to trick Crowley into killing Dean for her, revealing that the Mark is just an ancient curse, but Dean and Crowley talk instead. Dean helps Crowley realize just how little Rowena means to him, and he kicks her out. Sam and Dean later lie to each other about what they did, and Sam reads a note from Bobby telling him to keep looking and stop lying to each other.

Season 10, Episode 18: Book of the Damned

Charlie contacts Sam and Dean, having found the Book of the Damned. However, she is tracked by Jacob Styne, who is determined to find the book as well, claiming that it belongs to his family. Sam and Dean meet with Charlie and try to translate the book which calls out to Dean to be used. Dean learns from the Men of Letters files that the man and his family are the Styne family, a family who used the book to commit evil acts until it was taken from them a century before. After an encounter with Jacob, Dean orders Sam to burn the book as it’s evil and dangerous. Sam appears to burn the book during a fight with Jacob. His family is killed, but not before they warn that other Stynes will never stop until they retrieve the book. It is later revealed that Sam kept the book intact because it’s the only chance of removing the Mark of Cain, no matter the consequences. At the same time, Castiel and Metatron search for Castiel’s grace, coming under attack by an angry Cupid along the way. Searching for the grace inside a library, Metatron incapacitates Castiel with a spell and takes the demon tablet, what he had really come searching for. However, Castiel manages to recover his grace and is restored to full power though his wings are still broken. Sam and Castiel do not tell Dean that Metatron is on the loose with the tablet. After celebrating Castiel’s full return with Dean and Charlie, Sam meets with Rowena, believing her to be the only one capable of translating the book.

Season 10, Episode 19: The Werther Project

Sam meets with Rowena in hopes of translating the Book of the Damned. Rowena agrees in exchange for Sam killing Crowley for her and reveals that she can’t actually read the book, only a dead witch named Nadia could. However, Nadia left behind a decrypting codex, which the Men of Letters took when they killed her. Sam begins a search for the codex and discovers Magnus (Kavan Smith) had hidden it within the Werther Box, a vault that caused whoever tried to open it to kill themselves. Sam tracks the box to St. Louis, Missouri, where he is joined by Dean after attempting to leave him behind. After being barred by Suzie (a woman whose family died in the ’70s after she tried to open the box herself), Sam sneaks into the house with Dean’s help and tries to disarm the system with a spell. However, he is unsuccessful and unleashes a spell that traps Sam, Dean, and Suzie in hallucinations which try to get them to kill themselves. Suzie does, while Sam is saved by Rowena, whom he teams up with to disarm the box. Sam learns that the only way is for a Man of Letters to spill all of their blood onto the box, which he starts to do to save Dean. At the same time, Dean hallucinates that he is in Purgatory with his old friend Benny (Ty Olsson) who encourages him to kill himself to keep Sam and Castiel from having to do it later. Dean nearly does, but he knows the Mark won’t allow him to kill himself and also, he sees through the illusion as the real Benny would never want him to do it, so he kills “Benny”, freeing himself from the spell. It is revealed that Sam had been hallucinating Rowena’s presence as Dean stops Sam from killing himself and sheds his own blood into the box, breaking the spell and opening it. Sam and Dean get the codex and Dean destroys the box to be sure it’s no longer a threat. Sam takes the codex to the real Rowena, but chains her to make sure she only uses the book to get rid of the Mark of Cain.

Season 10, Episode 20: Angel Heart

In Tulsa, Oklahoma, Claire is knocked unconscious in an alley while searching for her mother Amelia, and Castiel calls Sam and Dean in to help. After Claire explains what she’s trying to do, the Winchesters and Castiel decide to help her with her search. While Sam helps Claire hack her mother’s credit card information, Dean and Castiel interrogate Ronnie Cartwright, the man who knocked Claire out. According to Amelia’s diary, he was the last person to see her. After Dean gets rough, Ronnie admits he sent Amelia to a faith healer named Peter Holloway who had healed his eyesight. However, he’d quit after seeing that Holloway was up to no good, cutting the people sent to him. After they leave, Ronnie calls Holloway who blinds him once again and kills him. Using this information, Sam is able to track Holloway to a farm house, but leaves Dean and Claire behind due to the Mark of Cain’s effects on Dean getting worse. Castiel finds Amelia who is trapped in a dream life where she has reunited with Jimmy. He wakes her but is unable to heal her as she is extremely weak. Sam is captured by Holloway at the same time that Dean and Claire realize he is one of the Grigori, a group of angels that prey upon humans. Holloway, revealing himself as Tamiel, tells Sam that he’s been hiding on Earth from the other angels by feeding on human souls since the beginning, seeing both angels and humans as beneath him. Afterwards, Dean, Sam, Castiel and Claire come to Amelia’s rescue, but are unable to defeat Tamiel. Amelia sacrifices herself to save Claire, who then kills Tamiel with his own sword in revenge. Amelia is reunited with her husband Jimmy in Heaven while the Winchesters decide to send Claire to Jody until she can get on her feet. Claire finally forgives Dean and Castiel for their roles in her father’s death and Dean leaves her with a lore book as a gift, as he realizes she is intending to become a hunter.

Season 10, Episode 21: Dark Dynasty

Wanting to get the Book of the Damned back, Monroe Styne sends his son, Eldon, to track down Sam and Dean to find it. Eldon and another family member ambush Dean, but he manages to kill the other family member and capture Eldon. Eldon explains to Dean that the Styne family has existed for thousands of years, and they harvest organs to transplant into themselves to make them superhuman. The Stynes cause, and take advantage of, various disasters in history to make a profit including Adolf Hitler’s rise to power and the September 11 attacks. The family is worldwide and was formerly known by the name of Frankenstein before Mary Shelley discovered their secrets and wrote a book about it. Dean goes to confront Sam after Eldon reveals that the Book of the Damned can’t be destroyed. Eldon escapes by ripping off his own arm. At the same time, Crowley searches for his missing mother with help from Olivette. Sam, Rowena, Castiel, and Charlie work on decoding the Book. After having too much of Rowena, Charlie leaves to have peace and quiet. However, she gets attacked by Eldon shortly after Rowena finally breaks the code. Sam and Dean, who have finally learned the truth, tell Charlie to give Eldon what he wants, but she destroys her computer instead of letting Eldon get her notes. Shortly afterwards, Sam and Dean find her dead, murdered by Eldon. However, as her last act, Charlie emailed them her notes on how to break the code so they could finish her work.

Season 10, Episode 22: The Prisoner

Devastated by Charlie’s death, Sam and Dean cremate her body. Dean decides to slaughter the Styne family in revenge for her murder, and the guilt-ridden Sam at first gives into Dean’s order for him to cease work on finding a cure for the Mark from the Book of the Damned. After noticing Charlie’s email when telling Castiel of her death, however, he decides to continue and shows the email to Rowena. Rowena can now decipher the Book’s secrets, but will only do so once Sam kills Crowley; thus, Sam lures Crowley into a trap and tries to kill him. Crowley survives but, embittered by Sam’s betrayal and rejection of his attempts to be good, re-embraces his evil, now planning to kill Rowena for arranging for his death. Meanwhile, Dean tracks the Stynes to Shreveport, Louisiana, where he is arrested by the corrupt police before forcing the sheriff to tell him where to find the Stynes. Dean is captured when attacking their mansion and they prepare to dissect him, but he escapes and brutally slaughters the assembled family members. When he returns to the bunker, he finds the last three Stynes robbing it, and kills all three despite the youngest Styne’s pleas for mercy. Castiel remonstrates with Dean, but Dean beats him savagely and comes close to killing him with an angel blade. Before leaving, he warns Castiel that he will kill him and Sam if he should see them again.

Season 10, Episode 23: Brothers Keepers

Dean continues to hunt, but the Mark affects him to the point that he gets another hunter killed. Realizing he’s gone too far, Dean summons Death (Julian Richings) to kill him before he hurts anyone else. Death explains that the Mark is the lock on the prison of an ancient evil called the Darkness and if the Mark is removed without being passed on, the Darkness will be released. He agrees to transport Dean far away in exchange for him killing Sam so Sam won’t try to rescue him. Dean calls Sam and explains that he feels that they are evil and ridding the world of both of them is for the greater good. Sam eventually agrees, but reminds Dean of how good he is and his love for his family. At the last moment, instead of killing Sam, Dean turns Death’s scythe on its owner, seemingly killing Death instead. At the same time, Rowena agrees to remove the Mark from Dean’s arm in exchange for her freedom and Castiel calls on Crowley to get the necessary ingredients. One of these proves to be a young man who Rowena cares deeply about and she has to sacrifice for the spell. Unaware of the consequences, Rowena casts the spell and the Mark is removed, but she escapes, casting a spell on Castiel that causes him to attack Crowley. With the Mark gone, the Darkness is released into the world and washes over the Impala as the Winchesters desperately try to escape it.

Supernatural Season 10 Review

Rating: 5 out of 5.

This season was fun, more arc and yet I love all the funny moments Sam and Dean have. Even better than the show is the cast interviews. Honestly these two are great and yet relatable.

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