<Tr> <Td> </Td> <Td> This section's plot summaries may be too long or excessively detailed . Please help improve them by removing unnecessary details and making them more concise . (February 2017) (Learn how and when to remove this template message) </Td> </Tr> <P> In this table, the number in the first column refers to the episode's number within the entire series, whereas the number in the second column indicates the episode's number within that particular season . "U.S. viewers in millions" refers to how many Americans who watched the episode live or on the day of broadcast . </P> <Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> <Th> U.S. viewers (millions) </Th> </Tr> <Tr> <Th> 83 </Th> <Td> </Td> <Td> "Sympathy for the Devil" </Td> <Td> Robert Singer </Td> <Td> Eric Kripke </Td> <Td> September 10, 2009 (2009 - 09 - 10) </Td> <Td> 3X5201 </Td> <Td> 3.40 </Td> </Tr> <Tr> <Td_colspan="8"> With the accidental freeing of the fallen angel Lucifer in the climax of the previous season finale by Sam Winchester (Jared Padalecki), the Apocalypse has started . An unknown force whisks Sam and his brother Dean (Jensen Ackles) from the place that Lucifer has started his destructive rise, and transports them safely onto an airplane passing overhead . They seek information from the prophet Chuck Shurley (Rob Benedict), learning that their angelic ally Castiel (Misha Collins) has been killed for helping them, but he is unable to tell them much else because he is being watched by angels, who are working against the Winchesters to bring on the Apocalypse . Chuck later sends word through a fan of his work named Becky Rosen (Emily Perkins) that the angels have lost the sword of the archangel Michael--a weapon capable of defeating Lucifer--and gives them a cryptic clue as to its location . When Sam and Dean decode the clue, they are attacked by demons working for Lucifer, including their old enemy Meg Masters (Rachel Miner) and their now - possessed friend Bobby Singer (Jim Beaver). Bobby manages to overcome the demon long enough to stab himself with a demon - killing knife, severely wounding himself in the process . The Winchesters defeat the other demons, but Meg flees before they can kill her . The brothers take Bobby to the hospital, then set off to take Michael's sword before the demons do . They find the angel Zachariah (Kurt Fuller) at the place the sword is supposed to be, as Zachariah had purposefully planted the information that led them there in one of Chuck's prophetic visions . Zachariah explains that Dean is in fact Michael's "sword" as Michael's destined human host (called a "vessel"). However, Dean refuses to provide the permission required for Michael to possess him, even when Zachariah threatens to kill Sam and Bobby and tortures the brothers . Castiel soon appears and forces a frightened Zachariah to leave with the thinly - veiled suggestion that he has been miraculously revived (and Sam and Dean put on the plane) by God himself . He then hides Sam and Dean from angelic detection and disappears . Back at the hospital, Bobby is revealed to have been permanently paralyzed below the waist by spinal injuries from his having stabbed himself . Dean tries to bolster his friend's confidence by giving a stirring speech about beating both the angels and the demons, but admits to Sam in private that he believes that they are all doomed . He also admits that while he forgives Sam, he can't trust him anymore . Meanwhile, a man (Mark Pellegrino) whose family has been slaughtered by a killer begins having nightmares in which Lucifer appears to him in the form of his wife (Bellamy Young) and tries to convince him to let him take over his body so he can face God and seek justice . The man eventually agrees . </Td> </Tr> <Tr> <Th> 84 </Th> <Td> </Td> <Td> "Good God, Y'All!" </Td> <Td> Phil Sgriccia </Td> <Td> Sera Gamble </Td> <Td> September 17, 2009 (2009 - 09 - 17) </Td> <Td> 3X5202 </Td> <Td> 2.80 </Td> </Tr> <Tr> <Td_colspan="8"> Castiel borrows Dean's pendant so that he can locate God . Bobby sends Sam and Dean to respond to a frantic call from his friend Rufus Turner (Steven Williams), who is in River Pass, Colorado, a town swarming with demons . They meet their old friend Ellen Harvelle (Samantha Ferris), whose daughter Jo has also gone missing . When the three find Jo and Rufus, they appear to be possessed by demons--and strangely, they seem to think Sam, Dean, and Ellen are also possessed . It is later revealed that there are no real demons present, merely illusions brought about by War (Titus Welliver), one of the Four Horsemen of the Apocalypse, to trick panicked people into killing each other . Afterwards, Sam and Dean agree to part ways because neither of them trust Sam on the job at the moment . </Td> </Tr> <Tr> <Th> 85 </Th> <Td> </Td> <Td> "Free to Be You and Me" </Td> <Td> J. Miller Tobin </Td> <Td> Jeremy Carver </Td> <Td> September 24, 2009 (2009 - 09 - 24) </Td> <Td> 3X5203 </Td> <Td> 2.66 </Td> </Tr> <Tr> <Td_colspan="8"> Sam receives a visit by Jessica; he tries to have a normal life by settling down at a town and working at a restaurant . Meanwhile, Dean teams up with Castiel to track down the archangel Raphael, as Castiel believes Raphael knows God's location . They manage to lure him out, however, Raphael claims that God is dead and suspects Lucifer raised Castiel from the dead . A group of hunters find Sam and want him to join on a demon hunt, but Sam refuses . The hunters return defeated and hold Sam's restaurant coworker hostage, forcing Sam to tell the truth about his involvement in the Apocalypse . Later, Jessica visits again, only this time it is really Lucifer, who informs Sam that he wants to use him as his vessel . </Td> </Tr> <Tr> <Th> 86 </Th> <Td> </Td> <Td> "The End" </Td> <Td> Steve Boyum </Td> <Td> Ben Edlund </Td> <Td> October 1, 2009 (2009 - 10 - 01) </Td> <Td> 3X5204 </Td> <Td> 2.62 </Td> </Tr> <Tr> <Td_colspan="8"> Sam calls Dean late at night and wants to team up again in the battle of the Apocalypse, but Dean declines . Dean awakens five years in the future where the Croatoan virus has devastated the world . He learns from Zachariah that it is the result of Dean's refusal to become Michael's vessel . Dean discovers a group of survivors led by his future self, who plans on confronting Lucifer in a final showdown . It is also revealed that in that future, Sam has accepted his role as Lucifer's vessel . After killing Future Dean, Future Sam / Lucifer tells Dean that whatever choices Dean will make, he will always end up in the same situation . Zachariah transports Dean back to his present and persuades Dean one more time, but Dean refuses, and Castiel saves Dean from Zachariah's wrath just in time . Dean contacts Sam and they reunite . </Td> </Tr> <Tr> <Th> 87 </Th> <Td> 5 </Td> <Td> "Fallen Idols" </Td> <Td> James L. Conway </Td> <Td> Julie Siege </Td> <Td> October 8, 2009 (2009 - 10 - 08) </Td> <Td> 3X5205 </Td> <Td> 2.47 </Td> </Tr> <Tr> <Td_colspan="8"> The reunited Sam and Dean visit Canton, Ohio and investigate a string of very strange murders . A man who has found James Dean's car "Little Bastard" is found dead having crashed into the car windshield . Another man is murdered by someone resembling Abraham Lincoln . Suspecting that the murders are the work of famous ghosts, the brothers discover that the local wax museum curator has been collecting actual artifacts to go along with the wax statues . Although Sam and Dean get rid of the ghosts, the incidents continue when two girls report that their friend was kidnapped by Paris Hilton . They check the bodies again and discover strange seeds that lead them to believe it is the work of Leshii, a pagan god whose forest was cut down in Eastern Europe . Sam and Dean return to the museum to confront Leshii (Paris Hilton). </Td> </Tr> <Tr> <Th> 88 </Th> <Td> 6 </Td> <Td> "I Believe the Children Are Our Future" </Td> <Td> Charles Beeson </Td> <Td> Andrew Dabb & Daniel Loflin </Td> <Td> October 15, 2009 (2009 - 10 - 15) </Td> <Td> 3X5206 </Td> <Td> 2.59 </Td> </Tr> <Tr> <Td_colspan="8"> In Alliance, Nebraska, people are being killed by practical joke devices such as itching powder and joy buzzers . On top of that, an odd - looking Tooth Fairy has extracted a man's full set of teeth . It turns out that an eleven - year - old boy named Jesse is the reason for all this, as whatever he believes has started to become reality . Sam and Dean discover that Jesse was adopted; his biological mother reveals that she was impregnated by a demon, and that she gave Jesse up for adoption at birth . Castiel tells the Winchesters that Jesse is the Antichrist, a human / demon hybrid being imbued with essentially unlimited powers, and that they should kill it before Lucifer uses him . While Sam and Dean try to persuade Jesse to side with them, Jesse's biological mother, who has since been re-possessed by the demon father, attempts to persuade Jesse to side with her . After listening to the demon, Jesse renders her unable to speak in order to hear what Sam has to say . Sam tells Jesse that he has a choice and that it will haunt him forever if he makes the wrong one . Jesse then exorcises the demon from his mother and agrees to leave with the Winchesters . Pretending he wants to say goodbye to his adoptive parents, he goes upstairs and vanishes into thin air, protected by his powers, which make it impossible for the hunters to track him down . </Td> </Tr> <Tr> <Th> 89 </Th> <Td> 7 </Td> <Td> "The Curious Case of Dean Winchester" </Td> <Td> Robert Singer </Td> <Td> Story by: Sera Gamble & Jenny Klein Teleplay by: Sera Gamble </Td> <Td> October 29, 2009 (2009 - 10 - 29) </Td> <Td> 3X5207 </Td> <Td> 2.90 </Td> </Tr> <Tr> <Td_colspan="8"> Sam and Dean follow a trail of deaths of people who have mysteriously aged . They discover that a wandering warlock named Patrick has been luring people into playing poker where the stakes are years of life represented by poker chips, and that their friend Bobby has played and lost / aged 25 years . Dean plays Patrick where he buys in with 50 years, redeeming 25 to undo Bobby's aging, but he ultimately loses . Remembering the ritual Patrick cast on the poker chips, Dean and Sam try to steal the chips, but fail . Later, Patrick's accomplice offers them a spell that would cancel the aging effect, but it requires a sample of Patrick's DNA . Sam attempts to challenge Patrick in order to swipe the DNA from Patrick's toothpick but fails as Patrick is aware of the trick . Sam must then play for real as Dean's lifetime runs out . </Td> </Tr> <Tr> <Th> 90 </Th> <Td> 8 </Td> <Td> "Changing Channels" </Td> <Td> Charles Beeson </Td> <Td> Jeremy Carver </Td> <Td> November 5, 2009 (2009 - 11 - 05) </Td> <Td> 3X5208 </Td> <Td> 2.65 </Td> </Tr> <Tr> <Td_colspan="8"> While investigating a homicide in Wellington, Ohio that was apparently executed by the Incredible Hulk, Sam and Dean suspect it is the work of the Trickster, but when they go to a warehouse location to try to stake him, they find themselves as characters in a television show, and must survive a sequence of events across different shows including a sexy medical drama, a Japanese game show, a sitcom, and a police procedural, all of which attempt to have the two accept their roles as vessels . They are able to stake the Trickster, but the scenario continues as Sam is transformed into their Impala and has to act like K.I.T.T. in Knight Rider . Dean and Sam lure the Trickster into a burning circle of holy oil as they suspect he is actually an angel . The Trickster reveals he is Gabriel, who voluntarily fell from Grace several years before as he grew tired of watching his brothers fight each other, and wanted Sam and Dean to accept their roles as vessels to end the Apocalypse . Dean still refuses to become a vessel, but before they leave, he frees Gabriel from his trap and accuses him of simply being too afraid to stand up against his own family . </Td> </Tr> <Tr> <Th> 91 </Th> <Td> 9 </Td> <Td> "The Real Ghostbusters" </Td> <Td> James L. Conway </Td> <Td> Story by: Nancy Weiner Teleplay by: Eric Kripke </Td> <Td> November 12, 2009 (2009 - 11 - 12) </Td> <Td> 3X5209 </Td> <Td> 2.69 </Td> </Tr> <Tr> <Td_colspan="8"> Following a text message from Chuck, Sam and Dean arrive at a hotel in Vermilion, Ohio, which is the site for a Supernatural fan convention . They find out that it was their over-enthusiastic fan Becky who sent the message, and have to deal with several Sam and Dean wannabes role - playing in a fictitious ghost hunt . After a convention attendee is seriously injured, the Winchester brothers find out that the hotel houses a real ghost named Leticia Gore, an orphanage caretaker who supposedly killed four children by scalping them . Together with two copycat Winchesters they find Leticia's bones and burn them, however they are later unable to leave the premises, and another attendee is killed . Sam and Dean have Chuck keep the attendees in the convention room while they deal with the three ghost boys who had killed Leticia's son . Afterwards, Becky reveals to Sam that Bela did not give the Colt to Lilith, but instead gave it to her subordinate, Crowley . </Td> </Tr> <Tr> <Th> 92 </Th> <Td> 10 </Td> <Td> "Abandon All Hope ..." </Td> <Td> Phil Sgriccia </Td> <Td> Ben Edlund </Td> <Td> November 19, 2009 (2009 - 11 - 19) </Td> <Td> 3X5210 </Td> <Td> 2.51 </Td> </Tr> <Tr> <Td_colspan="8"> Castiel finds Crowley (Mark A. Sheppard) and the brothers and Jo break into his mansion . To their surprise, Crowley shoots his henchmen, and gives Sam and Dean the Colt on the condition that they use it to kill Lucifer, as he believes that eventually Lucifer will kill his demons after he destroys humanity . Sam, Dean, Ellen, Jo and Castiel head to Carthage, Missouri, which appears deserted, except that Castiel sees it is full of reapers . When Castiel investigates, Lucifer captures him and tries to persuade him to join his side . Meanwhile, Meg Masters confronts the Winchesters and Harvelles, sending hellhounds to attack . Jo is mortally wounded, and they retreat into a hardware store . Dean confers with Bobby that the reapers are there to wait for their big boss, Death, one of the Four Horsemen . While Jo and Ellen sacrifice themselves to blow up the hellhounds, Dean and Sam confront Lucifer at the battle site where he has sacrificed the remaining townsfolk to his ritual to summon Death . Although Dean shoots Lucifer with the Colt, Lucifer recovers and heals, revealing himself as one of the five beings the Colt cannot kill . Castiel tricks Meg into getting out of Lucifer's trap, and takes the brothers to Bobby . </Td> </Tr> <Tr> <Th> 93 </Th> <Td> 11 </Td> <Td> "Sam, Interrupted" </Td> <Td> James L. Conway </Td> <Td> Andrew Dabb & Daniel Loflin </Td> <Td> January 21, 2010 (2010 - 01 - 21) </Td> <Td> 3X5211 </Td> <Td> 2.79 </Td> </Tr> <Tr> <Td_colspan="8"> A former hunter named Martin, who has been admitted into a mental hospital in Ketchum, Oklahoma, calls Sam and Dean for help with investigating a case . The brothers get themselves admitted as patients to check out the mysterious creature that has been attacking patients and has made their deaths look like suicide . They find out that they are dealing with a wraith, a creature that feeds on human brains and disguises itself as a human . The only way to identify a wraith is through a mirror, which reveals its true form . As the days go by, the Winchesters find themselves hallucinating . After an attempt to kill the hospital's chief of medicine, whom they suspect to be the monster, Sam is locked up and sedated with a heavy dose of tranquilizers . Despite his mind being paralyzed by the tricks the Wraith plays on it, Dean discovers that the wraith is the nurse who administered their tests in the beginning and kills it with a silver letter opener right before she is able to suck Sam's brain dry . The two then flee the mental institution and Sam admits that he has anger issues from everything that has happened . </Td> </Tr> <Tr> <Th> 94 </Th> <Td> 12 </Td> <Td> "Swap Meat" </Td> <Td> Robert Singer </Td> <Td> Story by: Julie Siege & Rebecca Dessertine & Harvey Fedor Teleplay by: Julie Siege </Td> <Td> January 28, 2010 (2010 - 01 - 28) </Td> <Td> 3X5212 </Td> <Td> 2.65 </Td> </Tr> <Tr> <Td_colspan="8"> Gary, a teenage nerd who resides in Housatonic, Massachusetts, meets Dean and Sam and conjures up a body - switching spell, exchanging bodies with Sam . Thrilled with his new looks, Gary takes advantage of his new appearance by hitting on women and drinking alcohol . He meets up with Dean, who at first does not realize Sam is not the real Sam . The two start working on a case and kill a ghost together, although "Sam" seems to try to take a chance to kill Dean, unknowingly to Dean . Meanwhile, Sam is stuck in Gary's body and has to deal with his strict parents and high school . He finds out that Gary owns a book with satanic symbols all over it and sets off for his locker at high school . After he has retrieved the book, he is shot by Gary's friend Trevor with a tranquilizer gun . He and another friend of Gary's, Nora, take him to a basement and reveal that they have made a pact with a demon, who offered them everything they wanted in exchange for Sam and Dean . Trevor conjures the demon, who possesses Nora and kills Trevor, whose demands irritate the demon . As the demon tastes Trevor's innards it declares they "taste like moron". The demon (still in the form of Nora) goes after Gary and tries to persuade him to meet Lucifer and "answer one little question" with yes, which would let the Devil into his true vessel . Gary refuses and after Dean fails to kill the demon, he and Gary manage to exorcise it together . In the end, Gary reverses the spell and the boys take him home . Before leaving, Sam tells Gary that he should be glad to have a normal life and a family, but when he and Dean get into the car, he states that Gary's life "sucked ass", yet Dean counters by saying that perhaps they themselves just don't know the good things they're missing out on . </Td> </Tr> <Tr> <Th> 95 </Th> <Td> 13 </Td> <Td> "The Song Remains the Same" </Td> <Td> Steve Boyum </Td> <Td> Sera Gamble & Nancy Weiner </Td> <Td> February 4, 2010 (2010 - 02 - 04) </Td> <Td> 3X5213 </Td> <Td> 2.28 </Td> </Tr> <Tr> <Td_colspan="8"> The fallen angel Anna (Julie McNiven) has escaped from her prison in Heaven and is planning on killing Sam in order to prevent the Apocalypse . She calls Sam and Dean and asks them to meet her, but instead of the brothers encounter Castiel, who doesn't believe she has escaped but suspects there is something she is not telling them . Anna explains that she believes killing Sam will prevent the Apocalypse as without his true vessel, Lucifer won't be able to bring about the end of the world . However, Castiel refuses to let her near the Winchesters and she disappears . Later, Castiel meets up with the Winchesters and tells them that Anna has traveled back in time to 1978 to stop Mary and John Winchester from conceiving Sam . The three also travel to the past, which weakens Castiel considerably . When knocking at their parents' door, Mary recognizes Dean from his earlier visit and tells them to leave immediately, suspecting something bad is bound to happen . John, however, is thrilled to meet "relatives" from Mary's side of the family and invites them in . Anna poses as John's employer and calls him at home, telling him to come to the garage he works at . After arriving there, he is attacked by Anna . The brothers and Mary come to rescue him, and Sam is able to drive Anna out of the building by using a magical sigil . They flee to a shelter, where Dean has a talk with Mary, in which he reveals that he and Sam are her sons and that she has to leave John in order to prevent her sons from being born . However, she reveals that she is already pregnant . Suddenly, Anna and an earlier Uriel rush into the house, attacking the Winchesters which allows Anna to kill Sam . Just as Anna is about to kill Mary, the Archangel Michael, having possessed John's body, enters the room and burns Anna to death . He reveals that Cain and Abel are the brothers' ancestors and that their destiny as Michael and Lucifer's true vessels has been set since those ancient times . While he loves Lucifer, having practically raised him like Dean did Sam, he feels he has to kill his brother as he is a "good son" and that there is no such thing as free will, that everything is predestined . He then revives Sam, erases Mary and John's memory, and sends the brothers back to their time . Despite Michael's words, Dean is still determined to win their way . </Td> </Tr> <Tr> <Th> 96 </Th> <Td> 14 </Td> <Td> "My Bloody Valentine" </Td> <Td> Mike Rohl </Td> <Td> Ben Edlund </Td> <Td> February 11, 2010 (2010 - 02 - 11) </Td> <Td> 3X5215 </Td> <Td> 2.51 </Td> </Tr> <Tr> <Td_colspan="8"> When couples start eating each other to death and killing each other, the brothers investigate and find angelic marks on the victims' hearts . They call Castiel, who suspects a rogue Cupid to be responsible for the deaths . Castiel summons the Cupid and asks him about the strange incidents, but the angel of love says he is only acting on higher orders, but that killings are not his work . After examining another victim's body, Sam follows a suspicious man and confronts him . Sam fights him and grazes him with Ruby's knife, which reveals that he is a demon . The demon flees and leaves his briefcase behind, and Sam finds his addiction to demon blood return . Soon, people start dying from binge eating or alcohol poisoning, and Castiel develops a weird craving for red meat, which leads them to believe that one of the Four Horsemen, Famine, who causes people to give in to their desires, is behind the deaths . They open the briefcase, which contains a human soul of a person . Castiel states that Famine harvests the souls of the people he killed and consumes them . Later, Dean and Castiel set out to face Famine and cut off the finger on which he wears the ring containing his power . They lock up Sam in order to prevent him from giving into his cravings and follow the demons who harvested a soul for Famine to devour . Meanwhile, demons enter the room where Sam is chained up . Sam breaks free, attacks the demons and satisfies his thirst . When Dean and Castiel arrive at the diner in which they suspect Famine to dwell, Castiel enters the building in order to attack Famine, but is held up by his desire for red meat . Dean walks in and is assaulted by the demons guarding Famine . Famine then states that Dean is not responding to his curse because he is empty inside and there is nothing that can satisfy his hunger . When Sam suddenly appears, Famine offers him the demons guarding himself, but Sam refuses . He exorcises them, and Famine devours their essences . Sam tries to use his powers on the Horseman, but Famine states that Sam's abilities will not work on him . Instead of killing the Horseman himself, Sam uses his powers to destroy the demons Famine had just swallowed, effectively killing Famine . In the end, Dean and Castiel lock Sam in Bobby's panic room in order to detox the demon blood out of his system . When Dean cannot bear to listen to Sam's screams anymore, he walks outside and calls to God for help . The name refers to the film of the same name that actor Jensen Ackles was in, as well as referencing to Devour, another film he was also in . </Td> </Tr> <Tr> <Th> 97 </Th> <Td> 15 </Td> <Td> "Dead Men Don't Wear Plaid" </Td> <Td> John Showalter </Td> <Td> Jeremy Carver </Td> <Td> March 25, 2010 (2010 - 03 - 25) </Td> <Td> 3X5214 </Td> <Td> 2.95 </Td> </Tr> <Tr> <Td_colspan="8"> Sam and Dean investigate Bobby's hometown of Sioux Falls, South Dakota where the dead are rising from the grave, but instead of attacking humans they are happily reuniting with their families . The brothers turn to Bobby for help, but he tells them not to worry about it and to leave town . Suspicious, Dean investigates further and comes face to face with Bobby's dead wife, who seems to have no memory of what has happened to her . Soon the zombies start to become evil one by one, killing and eating their loved ones . The brothers urge Bobby to kill his "wife" before she does the same . Bobby refuses because he wants to spend a few happy hours with his resurrected wife and says that as soon as she turns evil he will take care of it . Shortly after, his wife shows signs of becoming a flesh - eating zombie . Weakened by the disease, she lies down to rest and tells Bobby that she actually remembers her demonic possession and death . She also delivers a message from Death . As Dean and Bobby prepare to head out to fight the zombies, Bobby's salvage yard is swarmed with them and Dean and Bobby end up trapped . They are rescued by Sam and local sheriff, Jody Mills (guest star Kim Rhodes), who found out the horrifying truth after her son killed her husband . In the end, Bobby reveals that the rise of the dead took place in his hometown because Death wanted to break his spirit since he stands in the way of Lucifer's plans by helping the Winchesters . </Td> </Tr> <Tr> <Th> 98 </Th> <Td> 16 </Td> <Td> "Dark Side of the Moon" </Td> <Td> Jeff Woolnough </Td> <Td> Andrew Dabb & Daniel Loflin </Td> <Td> April 1, 2010 (2010 - 04 - 01) </Td> <Td> 3X5216 </Td> <Td> 2.40 </Td> </Tr> <Tr> <Td_colspan="8"> Ambushed by angry hunters, Sam and Dean are killed and sent to Heaven . Castiel, talking through radios and a TV, explains to the brothers that Zachariah is searching for them . The Winchesters' task is to find the angel Joshua, who is rumored to be able to talk to God, in the Garden at the end of the Road, or Axis Mundi, through heaven . Trying to escape from Zachariah's persecution, Sam and Dean re-live the happiest moments of their lives . On their way they meet Ash, living in an illusional Roadhouse . He says that the people sent to Heaven are rewarded for their good deeds with a replica of their happiest memory . They also encounter Pamela, who states that being dead and in Heaven is not so bad, after all . Eventually, Zachariah finds the brothers and begins to torture Dean, saying that he is sick of being condemned by his fellow angels because he cannot handle "one little human ." However, he is stopped by Joshua, who claims to be acting on orders from God . Taking the Winchesters to the Garden, Joshua tells Dean that God will not help them . It is revealed that He is the one who put them on that airplane in "Sympathy for the Devil", brought back Castiel and now granted them salvation in Heaven . However, He does not feel the Apocalypse is his problem and will do no more to help . Joshua then returns them to Earth with their memories, where the brothers meet Castiel and tell him everything . Castiel curses God and gives Dean his amulet back, stating that it is useless now . As the brothers leave the motel, Sam tries to convince Dean that they can still stop the Apocalypse . Before walking out the door, Dean throws his amulet into the trash can, leaving faith at the door . </Td> </Tr> <Tr> <Th> 99 </Th> <Td> 17 </Td> <Td> "99 Problems" </Td> <Td> Charles Beeson </Td> <Td> Julie Siege </Td> <Td> April 8, 2010 (2010 - 04 - 08) </Td> <Td> 3X5217 </Td> <Td> 2.78 </Td> </Tr> <Tr> <Td_colspan="8"> Sam and Dean are cornered by demons, but saved at the last minute by Rob and his townspeople, who are aware of the Apocalypse and have been training to fight and kill demons . The small town has become very religious, and the brothers meet Pastor Gideon, who introduces them to his daughter Leah . She has been receiving visions from angels and guiding the townspeople to demons, whom the townspeople always seem to defeat and exorcise . Eventually Leah begins telling the locals that they are "Chosen" to win the Apocalypse and see their dead loved ones again in a Paradise on Earth, but to do so must get rid of "sinners" among them whose names the angels are giving to her . The brothers learn that Leah has been replaced by the Whore of Babylon, a creature from Hell that emerges during the Apocalypse and tries to condemn as many people as possible to eternal punishment in Hell by tricking them into committing Deadly Sins . The Whore had only been sending locals on demon hunting trips to earn their trust, and the exorcisms are fake . Her true agenda is to cause the townspeople to kill as many of each other as she can, and damn their souls to Hell . She can only be killed with a cypress wooden stake from a tree in Babylon and by the hand of a true servant of Heaven . The Pastor has become concerned by Leah's increasingly ruthless behavior, and while walking outside is confronted by Castiel who informs him of the truth . Reuniting with Sam and Dean, the Pastor is informed that Leah is not his real daughter but the creature that killed her . The demonic creature has to be killed and they point out that the Pastor is a true servant of Heaven . They halt the Whore just before she and her "Chosen" can burn the "sinner" townspeople to death . The Pastor is knocked out and the Whore begins battling Dean, but he manages to stake her, proving to a surprised Sam that he is a true servant of Heaven . Sam asks him if he is going to do something stupid like saying "yes" to the angel Michael . In the end, Dean leaves Sam to drive and see Lisa and tells her that, in the next few days, she's going to see "trippy" things on TV, but she need not worry because he is going to make arrangements to protect her and her son, Ben . He also confesses that when he dreams of having a happy family it is with her and Ben . Lisa is terrified and asks Dean to stay, have a beer and talk for a while, but Dean declines and leaves . </Td> </Tr> <Tr> <Th> 100 </Th> <Td> 18 </Td> <Td> "Point of No Return" </Td> <Td> Phil Sgriccia </Td> <Td> Jeremy Carver </Td> <Td> April 15, 2010 (2010 - 04 - 15) </Td> <Td> 3X5218 </Td> <Td> 2.45 </Td> </Tr> <Tr> <Td_colspan="8"> Before Dean can go to say yes to Michael, Sam and Castiel capture him and lock him in Bobby's panic room . At the same time, the angels decide they don't need him anymore . Instead, Zachariah uses Dean and Sam's half - brother, Adam, to serve as Michael's vessel as he is related to the Winchesters by blood . Castiel rescues Adam as he revives and brings him to see his brothers and Bobby . But Adam has no problem being Michael's vessel as the angels promised to reunite him with his deceased mother and Sam tries to talk him out of it . Since Dean still has the intention to accept the archangel, Castiel and Sam lock him in a cell but Dean tricks Castiel into releasing him and escapes . Adam is convinced by Zachariah to act his part and he leaves voluntarily . Dean is chased down by Castiel and enraged at his betrayal and willingness to give in so easily, the angel drags Dean into an alleyway before subjecting him to a brutal beating that leaves Dean with several injuries . When Dean tells him to do it, Castiel knocks him unconscious and takes him back to Bobby's house . Upon going with Zachariah, Adam discovers that the angels have fooled him into tricking Dean to become Michael's vessel . Sam trusts Dean not to give himself up to the angels and releases him to help rescue Adam . Castiel goes inside the warehouse and confronts a group of angels, using a sigil on his body to banish himself and the angels away while Dean and Sam enter . They attempt to take Adam with them but are confronted by Zachariah . The angel tortures both Sam and Adam to force Dean to say yes . Dean relents and tells Zachariah to summon Michael . However, Dean reveals he's made a few conditions in order to have Michael possess him, with the first being Zachariah will be killed by Michael . Zachariah doubts Michael will hurt him, even for Dean's yes, but Dean kills Zachariah himself instead with an angel sword through the head . As Michael descends, the three brothers flee but Adam is trapped inside . Dean is unable to go back in to save Adam due to the searing heat and light, and when he enters the room moments later, the room holding Adam has disappeared . Later, Dean apologizes to Sam for his decision and tells his brother they will take the fight to them, whether they be angels or Lucifer having regained his faith due to Sam's unshakable faith in him . </Td> </Tr> <Tr> <Th> 101 </Th> <Td> 19 </Td> <Td> "Hammer of the Gods" </Td> <Td> Rick Bota </Td> <Td> Story by: David Reed Teleplay by: Andrew Dabb & Daniel Loflin </Td> <Td> April 22, 2010 (2010 - 04 - 22) </Td> <Td> 3X5219 </Td> <Td> 2.82 </Td> </Tr> <Tr> <Td_colspan="8"> Sam and Dean end up in a seemingly one - star motel at the side of the road in Muncie, Indiana, but it turns out to be a four - star hotel with staff who are a little too friendly for the brothers' liking . They soon discover strange things happen at the hotel and guests are disappearing one at a time . They are soon trapped by the staff, who turn out to be a group of pagan gods, including Kali, Ganesh, Mercury, Zao Shen, Baron Samedi, Odin, and Baldur, and who want to use them as bargaining chips to stop the Apocalypse . Dean and Sam are soon joined by Gabriel under his Loki persona, who is willing to help them out . While he distracts Kali, Dean and Sam try to free the other trapped guests, however Kali is on to Gabriel and steals his sword and kills him . The brothers make a deal: release the guests and they will help the gods kill Lucifer . The gods reluctantly agree and Dean leads the hostages outside and stumbles upon a very much alive Gabriel, who explains the sword was a fake . He tells Dean he can't kill Lucifer because he's his brother, and Dean goes back inside the hotel . Lucifer is summoned by Mercury . He arrives and kills Mercury, and all of the other gods save for Kali . Gabriel shows up to help the brothers and sends them away . As he faces Lucifer for the first time in centuries, Gabriel tells him he's not loyal to him or Michael, but to humans, because despite their flaws, they're always willing to try harder and forgive . As Gabriel makes his move, Lucifer is onto him and kills him . Outside, Dean and Sam watch a movie Gabriel gave to them, in which the archangel explains to them that they can't kill Lucifer, but they can trap him back in Hell . All they need are the four rings that belong to the Horsemen to do this . As Dean and Sam set out to find them, Pestilence is revealed to be on Earth spreading disease . </Td> </Tr> <Tr> <Th> 102 </Th> <Td> 20 </Td> <Td> "The Devil You Know" </Td> <Td> Robert Singer </Td> <Td> Ben Edlund </Td> <Td> April 29, 2010 (2010 - 04 - 29) </Td> <Td> 3X5220 </Td> <Td> 2.38 </Td> </Tr> <Tr> <Td_colspan="8"> Dean and Sam encounter Crowley while on the trail of Pestilence . Both brothers are angry at Crowley for giving them the Colt which did not work on Lucifer which he claims not to have known . Crowley mentions that he's being hunted down by his fellow demons and tells the brothers that he knows where the last two rings can be found . He directs them to Brady, the demon Handler for the Four Horsemen of the Apocalypse . However, Crowley will only show the way if Sam does not go with them . Later, Sam and Bobby have an argument over Sam intending to trick Lucifer back into Hell by letting Lucifer possess him . Dean meets Brady, the demon - possessed CEO of a pharmaceutical company, who is under Pestilence's orders . Dean tries to trick Brady with a proposition but the demon does not buy it, intending to just kill Dean . However, Crowley gets the drop on Brady and knocks him unconscious . Dean is warned by Crowley that Sam and Brady have a history; Brady is in fact Sam's classmate from college . The Handler possessed Brady since sophomore year, and deliberately introduced Jessica to Sam to put Azazel's plans into motion . Sam is furious and wants to kill Brady but Dean stops him . While Crowley is away, Sam traps Dean in the bathroom as he plans to kill Brady . Brady goads Sam into killing him by revealing he killed Jessica, not Azazel, but Sam manages to calm himself and leave . Crowley returns after killing a nest of demons and making it look as though Brady joined his side . However, Crowley is tracked down by a hellhound . Crowley escapes, leaving Dean, Sam and Brady in the hideout . While Dean attempts to fight off the hellhound, Crowley returns with his own hound against the other hound . After the four of them escape, Brady gives up the location for Pestilence . Dean then allows Sam to finish Brady off . Later, Crowley appears to Bobby and tells him he will reveal Death's location in exchange for his soul . </Td> </Tr> <Tr> <Th> 103 </Th> <Td> 21 </Td> <Td> "Two Minutes to Midnight" </Td> <Td> Phil Sgriccia </Td> <Td> Sera Gamble </Td> <Td> May 6, 2010 (2010 - 05 - 06) </Td> <Td> 3X5221 </Td> <Td> 2.53 </Td> </Tr> <Tr> <Td_colspan="8"> Dean and Sam finally hear from Castiel again, but he cannot go to them because his "batteries" are drained and he has no more power; he's now practically human . Dean and Sam go after Pestilence, and nearly die from a hailstorm of diseases . Castiel shows up (he took a bus) and cuts off the Horseman's finger, using the last of his angelic strength to resist Pestilence's plagues . He takes the ring, but not before Pestilence tells them that "it's too late". Upon rejoining with Bobby, the brothers learn how Bobby "pawned" his soul to Crowley in exchange for the location of the fourth, final, and most powerful of the Four Horsemen, Death . Crowley explains that Bobby's soul is his insurance, and that he won't give it back until everything has cooled down . It turns out the deal includes a bonus; Bobby can walk again . The group splits up; Sam, along with Castiel and Bobby, head out in order to find and contain the Croatoan virus (disguised and being distributed as a swine flu vaccine). On the way, Castiel hears about Sam's plan concerning Lucifer and surprisingly encourages him . However, he warns Sam that Michael has already found a human vessel: Adam . The battle between Michael and Lucifer will commence if Sam isn't able to resist possession . At the shipping warehouse, the three are able to contain the virus and shoot those who have been infected by it . Meanwhile, Dean goes with Crowley to find Death and get the last ring . They locate Death in Chicago, which according to Bobby is about to be wiped out by the storm of the millennium . As the rain starts, Death and Dean meet in a pizza parlor, littered with the bodies of customers and staff . Death explains that he is tied to Lucifer through a spell . This is the only reason he didn't try to find Dean, but has instead had to wait for him . He offers to give him his ring, but there is one condition; agree to Sam saying yes to Lucifer so they can lure him into the trap . He'll also spare Chicago . ("I like the pizza," Death says .) Dean agrees, receiving the ring and instructions on how to use all four of them to trap Lucifer . Upon returning, he tells Bobby he lied to Death's face, but Bobby says that Death is Death, and asks Dean if he's more afraid to lose, or to lose his brother . </Td> </Tr> <Tr> <Th> 104 </Th> <Td> 22 </Td> <Td> "Swan Song" </Td> <Td> Steve Boyum </Td> <Td> Story by: Eric Gewitz Teleplay by: Eric Kripke </Td> <Td> May 13, 2010 (2010 - 05 - 13) </Td> <Td> 3X5222 </Td> <Td> 2.84 </Td> </Tr> <Tr> <Td_colspan="8"> Chuck begins to narrate the life and times of the Impala and the boys' life inside of it . Chuck reveals their time spent in the Impala and how they made it their home throughout the years before and after they began hunting . Dean finally agrees to allow Sam to say yes to Lucifer while Sam requests he not try to bring him back and to have a normal life with Lisa and Ben when he's gone . Remembering a comment made by Lucifer in the future, Dean realizes that the fallen angel is in Detroit . Sam and Dean confront Lucifer, who knows of their plan to use the Horsemen's rings to trap him back in his cage . Despite this, Sam offers himself as a vessel, hoping that he can overcome Lucifer's control and throw himself into the prison . Lucifer is too strong, and Sam disappears in his body . As Lucifer tries to make Sam happy by killing the demons sent by Azazel to manipulate him during his childhood, Dean learns from Chuck the time and location of the final battle between Michael and Lucifer . The following day at the battleground--Stull Cemetery in Stull, KS (just outside Lawrence, Kansas)--Lucifer tries to talk Michael out of fighting, but he refuses . However, Castiel interrupts the fight by banishing Michael with holy fire . An angry Lucifer kills Castiel, and then snaps Bobby's neck when he shoots him . He then starts brutally beating Dean, but stops when he notices an old army man of Sam's inside the Impala revealed earlier during Chuck's narration . Sam remembers his life growing up with Dean, and manages to take control of his body . He uses the rings to reopen the door to the cage, and prepares to jump inside . Michael returns and tries to stop him, but he too is pulled into the pit while grappling with Sam . Castiel, resurrected again by God as a more powerful angel, heals Dean and brings Bobby back to life . He returns to Heaven, hoping to bring order now that Michael is gone . As Dean attempts to move on, he seems to turn his back on hunting and returns to Lisa . Chuck smiles after finishing his narration of the story, and vanishes into thin air . Later that night, a streetlight flickers out and Sam is revealed outside Lisa's home, looking in the window at the "family" eating dinner together...</Td> </Tr> </Table> <Tr> <Th> No . overall </Th> <Th> No. in season </Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> Prod . code </Th> <Th> U.S. viewers (millions) </Th> </Tr>

When do the four horsemen come in supernatural
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