Season 1
Intro: Season 1 of Supernatural shows the Winchester boys begin their demon-hunting trek across the US, occasionally teaming up with their father and aided by the powerful Colt revolver. Sam develops his psychic ability, which aids the in tracking the yellow-eyed demon who killed their mother.
Original Air Dates: September 13, 2005 - May 4, 2006

Episode #: 1
Title: "Pilot"
Summary: We're introduced to Sam and Dean's back story, in which their mother was killed by a mysterious figure when they were young, and their father raised them to hunt supernatural entities.

In the present day, Sam is preparing to enter law school when Dean shows up out of the blue to recruit him to help find their father, who's been gone for three weeks on a "hunting" trip. They follow his trail to a stretch of highway haunted by a "woman in white" who preys on men passing through.

Episode #: 2
Title: "Wendigo"
Summary: Continuing to follow their missing father's trail, Sam and Dean end up in forest area called Blackwater Ridge, where they run into a woman looking for her missing brother and a malevolent creature from Native American legend known as a Wendigo.

Episode #: 3
Title: "Dead in the Water"
Summary: They guys investigate a series of mysterious drownings in Lake Manitoc, Wisconsin and uncover the town's secret with the help of a mute boy.

Episode #: 4
Title: "Phantom Traveler"
Summary: A demon possesses a man in an airport and makes him crash the plane he boards. Afterwards, it goes after the survivors of the crash, and the brothers track it down to another plane, hoping to kill the demon before it crashes as well.

Episode #: 5
Title: "Bloody Mary"
Summary: While investigating a murder, Sam and Dean find out that the legendary Bloody Mary game -- in which a ghost kills people through a mirror -- is real. It's also revealed that Sam has the ability to see premonitions.

Episode #: 6
Title: "Skin"
Summary: The guys investigate a murder for which Sam's old college friend is charged and discover that the real culprit is a shapeshifter who ends up replicating Dean.

Episode #: 7
Title: "Hookman"
Summary: The urban legend of the serial-killing "hook man" turns out to be real -- but with a supernatural twist.

Episode #: 8
Title: "Bugs"
Summary: A new land development is built on land that has been cursed with killer bugs determined to kill anyone who resides there.

Episode #: 9
Title: "Home"
Summary: Sam is haunted by a vision of a woman trapped in the brothers' childhood house and convinces a reluctant Dean that they need to go home. They discover that the woman in Sam's dream now lives in the house, which might be haunted by the demon that killed the brothers' mother.

Episode #: 10
Title: "Asylum"
Summary: The guys investigate an abandoned asylum that's haunted by the ghosts of abused mental patients and an evil doctor who has the power to turn anyone -- including Sam -- insane.

Episode #: 11
Title: "Scarecrow"
Summary: After they receive a call from their father, Sam and Dean have a falling out, with Sam heading off to find his dad and Dean deciding to investigate the disappearance of a couple in an Indiana town. While Sam meets a mysterious woman named Meg on the road, Dean discovers that the townspeople in Indiana sacrifice visitors to a killer scarecrow.

Episode #: 12
Title: "Faith"
Summary: After Dean is electrocuted while trying to kill a monster, he's diagnosed with two weeks to live. Sam finds a faith healer who cures Dean, but for each life he saves, another person dies.

Episode #: 13
Title: "Route 666"
Summary: Dean's ex-girlfriend comes to him for help in solving a series of racially motivated deaths along a stretch of highway haunted by a ghostly truck.

Episode #: 14
Title: "Nightmare"
Summary: Sam's premonition leads the brothers to a telekinetic man who uses his power to exact vengeance upon those who've wronged him and who has a connection to the being that killed the guys' mother.

Episode #: 15
Title: "The Benders"
Summary: Sam is captured by a backwoods family with a history of kidnapping and butchering people.

Episode #: 16
Title: "Shadow"
Summary: The guys run into Meg, a girl they'd met in a previous episode, only to discover that her intentions aren't good -- for them or their father, John.

Episode #: 17
Title: "Hell House"
Summary: Sam and Dean discover that a website run by paranormal investigators has ties to the secret behind Hell House. The house is believed to be haunted by the ghost of a man who murdered his six daughters, but the true source of evil is much more dangerous.

Episode #: 18
Title: "Something Wicked"
Summary: The brothers encounter a witch from Dean's past that steals children's life force, placing them in comas.

Episode #: 19
Title: "Provenance"
Summary: Sam and Dean investigate a cursed painting that means death to anyone who owns it.

Episode #: 20
Title: "Dead Man's Blood"
Summary: The guys' father shows up to help solve the murder of one of his old friends and to track down a legendary gun, "the Colt," that can kill supernatural beings.

Episode #: 21
Title: "Salvation"
Summary: Meg begins killing John's friends in order to get him to give her the Colt. While he confronts Meg, the boys use Sam's visions to try to ambush the demon that killed their mother.

Episode #: 22
Title: "Devil's Trap"
Summary: The brothers must save their father from Meg by figuring out how to exorcise and defeat a demon. They get help from Bobby, an old friend of John's.