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Sam and Dean track a shapeshifter that kills its victims by taking on the shape of their loved ones.
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Sam and Dean investigate rumors of ghosts along a mountain road and help a traveler whose husband went missing.
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Sam and Dean visit their childhood home in Lawrence, Kansas and encounter unseen force terrorizing the current residents.
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The Winchesters get blamed for a series of mysterious accidents caused by an Impala in New Orleans.
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Sam and Dean investigate a series of cattle mutilations and run across Jason, a hunter who specializes in vampires.
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A childhood secret comes back to haunt Sam.
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Sam and Dean reunite with Bobby to track down the killer of another hunter.
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Sam and Dean investigate a serial killer who seems to reappear every 15 years.
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Sam and Dean stop by Las Vegas for a little fun and relaxation, but bad luck puts them in danger.
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A spate of wild dog attacks lead Sam and Dean to suspect that it has something to do with a werewolf.
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As Sam's premonitions get stronger, the Winchesters visit a bereaved family with a terrible secret.
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John takes center stage and meets Lily, a girl whose mother died in a fire years ago much like the one that killed Mary.
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When the Impala breaks down in Louisiana, the boys visit a town has been suffering from a series of demonic omens.
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Sam and Dean are finally reunited with their father…but a happy ending may not be in the family's future.
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John gets trapped by Meg, an evil demon, and the boys have no choice other than to run.
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As Dean struggles to recover, his soul wanders a hospital as a ghost and meets a Reaper.
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In a prequel episode featuring young Winchesters, Dean is haunted by his father’s premonition.
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Sam and Dean follow investigate a rash of suicides that may be connected to a demon.
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The boys encounter a soldier from Afghanistan who might have superpowers.
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Dean wakes up one day in a totally different world where his mother is alive and begins to question his own reality.
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Sam wakes up to find himself in a ghost town with other psychics who have similar powers.
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Dean finds out just how far he will go to save his brother, Sam.
