[[14.05 Nightmare Logic]] finds [[Sam]] and Dean heading to Claremore, Oklahoma after [[Maggie]] misses a check-in while on a hunt, and her body-cam shows she was attacked by a [[ghoul]]. She was following a lead from an online post where some kids were studying and were attacked by a "walker". They enter the crypt where Maggie was attacked but find no blood, meaning she is probably still alive. A gardener finds them in the crypt, and Sam tells him they're from the Historic Preservation Society and ask to speak to the owner. The gardener takes them to the main house where they talk to [[Neil]] who is excited over the prospect of the property being declared a historical site - but wonders how many people it takes, as their colleagues have already arrived - [[Mary]] and [[Bobby (Apocalypse World)]]. Mary takes Sam aside to talk, while Dean and Bobby question Neil, who tells them he's not the owner and escorts them to Mr. Rawlings - who is unconscious and bedridden, and also looks like the ghoul who appeared in Maggie's video. [[Sasha Rawlings]], the daughter, enters the room and the boys question her about her father, but she really doesn't know much because she just came down to take care of his affairs. They start to ask more questions but she asks them to leave. They meet Bobby and Mary by the [[Impala]] where Bobby briefs them on his investigation into the elder Rawling - he's not a ghoul, and the standard tests ruled out shapeshifter and demon. Bobby then argues with Sam over having sent Maggie on this case by herself before she's ready and saying he's not a real leader. Mary stands up for Sam and suggests they split up to look for Maggie. Dean and Bobby split off, and Bobby asks Dean if he thinks he was too hard on Sam, and Dean tells him Sam is doing the best he can and working his tail off. They find an old shed and Dean goes in to investigate and finds a body. He turns to look for Bobby, who has disappeared, and is attacked by the "ghoul" who turns into a cloud of dust when Dean stabs it. Bobby reappears and asks him what happened.
Dean returns to the house to find Mary and Sam talking to Sasha, who was attacked by what appeared to be a vampire while investigating noises coming from the attic. Dean tells them he found a dead guy in the shed, and Sam shows him a burned ID card - he and Mary had found a pile of ID cards in a pile in the woods, partially burned. The ID picture matches the guy Dean found in the shed - something is killing hunters. Mary, alarmed, asks where Bobby is and Dean tells her he went to get something from the truck. She rushes outside to find him. Sam wonders if the dad is like [[Fred Jones]] and is creating these apparitions, but Sasha says her dad has never shown any psychic abilities. Sam goes to investigate the attic while Dean stays with Neil and Sasha. Dean and Sasha talk about her troubles with her dad - she blames him for her mother's suicide. Dean counsels her to "let it go", that he tries to do the same every day. They walk to the room where Mr. Rawling lay where Neil is attending to him. Dean notices bags of blood attached to him and asks Neil if Mr. Rawlings is getting a transfusion. Neil stammers and says his iron is low. Dean, suspicious, asks Sasha to make him a sandwich as a ruse to leave the room, and Dean draws a gun on Neil, realizing he's a [[djinn]]. Dean asks him why he's killing hunters and Neil says it's because he asked him to - he thinks Dean is [[Michael (Apocalypse World)]] and was testing him. Michael made him a deal - kill hunters in exchange for upgraded powers. When Neil finds out Dean is not Michael, he attacks Dean and attempts to read his mind, but sees something that distracts him enough for Dean to escape and hit him with a metal bookend. Before Dean knocks him out, Neil reveals Michael has laid many traps for him and his family. Dean empties a clip into him. Later, Dean removes the IVs from Mr. Rawlings and tells Sasha he'll recover as soon as the djinn's poison leaves his system.
Back at the Bunker, Maggie is welcomed back and Dean tells Sam he was the one that did this, that he saved her and brought her home.