Southern Wyoming is the setting for the final showdown between the Winchesters and the yellow-eyed demon.
The victims of the yellow-eyed demon - including Sam Winchester - are gathered together to partake in a final test as the demon's master plan nears its completion.
Dean wakes up to a strange and different world in which he's married to a beautiful wife, his mother is alive and well and he no longer hunts demons with Sam.
Sam's dreams lead the Winchester brothers to East St. Louis, Illinois where they try and change the fates of Danny and Jake, another set of brothers whose lives and destinies the yellow-eyed demon seems determined to manipulate.
The brothers investigate a crossroad demon; an entity that grants wishes in exchange for one's soul.
A box of family papers and photos makes Dean reminisce about the past, particularly the events surrounding his family and Sam's elementary school teacher, Susan Lyle.
The injuries received from confronting the yellow-eyed demon leave Dean near death. With almost no hope for recovery, John Winchester does something drastic to save the life of his son.
The Winchesters track the yellow-eyed demon to a place called Salvation where they finally get to confront the evil that has eluded them for so long.
While tracking down the location of a special Colt gun, the Winchesters investigate a string of murdered hunters that eventually leads them to their missing father and a pair of vampires they had previously rescued.
When their car breaks down in a remote rural community, the Winchesters decide to investigate whatever is behind a rash of water monster sightings at a nearby mountain lake.
After locating another possible victim of the yellow-eyed demon, John Winchester tries desperately to help save her and her father who abandoned her many years ago.
When Sam's premonitions lead him to a young man with a similarly tragic past, the Winchesters are both sympathetic and conflicted when they realize the young man was responsible for the death of his father.
Since they only occur when the moon is full, the Winchesters suspect a werewolf is the real culprit behind a series of attacks being blamed on wild dogs.
In Las Vegas, things just keep going from bad to worse when Dean falls victim to "The Poverty God," a Japanese deity that brings misfortune and misery wherever it goes.
After learning that a different internal organ had been removed from each of the blue-eyed, blond-haired victims, Sam and Dean believe that Satanic rituals are involved and so head to Chicago to catch a serial killer.
Bobby, a fellow hunter, joins up with the Winchester brothers to help investigate the death of William Henderson, one of their father's ex-Marine buddies and another fellow hunter, in hopes of getting clues that will lead them to their mother's killer or the whereabouts of their missing father.
While visiting the grave of his former girlfriend, Jessica, Sam Winchester reminisces about the time they first met and how he and his family intervened when she became stalked by "Bloody Mary".
While hunting for the monster responsible for several decapitations and cattle mutilations, Dean encounters another hunter whose sadistic behavior makes him question his own hunting and ask, "Who is the real monster?"
The Winchesters are arrested when they and their black Impala are implicated in several vehicular related deaths. Only by joining forces with a distrustful sheriff and his effeminate brother can they hope to clear their names and catch the real culprit.
At Sam's insistence, the Winchester boys return to their childhood home in Lawrence, Kansas where they learn that the evil presence that attacked their family 20 years ago may have returned. With the help of Missouri Mosely, a local medium, and an unexpected ally, the boys try to vanquish the evil once and for all.moreless
While driving on a lonely snow-covered stretch of Route 41, the Winchesters narrowly miss hitting Molly, a recent car accident survivor. Only after they agree to help locate her missing husband does it appear that their chance encounter may not have been as random as first thought.
Based on Eric Kripke's popular television show by the same name, the exploits of the demon hunting brothers, Sam and Dean Winchester, are chronicled in 30 minute animated episodes. In the first episode, Dean and Sam interrupt their search for their missing father to investigate a series of spousal murders in which the accused insist they were elsewhere when the crimes were committed.moreless