In 1980 Emerson, Manitoba, a young boy named Asa Fox is attacked by a werewolf. Asa is saved by Mary Winchester who has been hunting the werewolf for a long time. Inspired by the meeting, Asa becomes a legendary hunter as he grows up before being killed in 2016. Learning of Asa's death, many hunters go to his wake including Sam, Dean, Mary and Sheriff Jody Mills who had been in a relationship with Asa. Things are awkward between the Winchesters before one of the hunters is found murdered. It is quickly realized that they are dealing with Jael, a sadistic Crossroads Demon who has had a grudge against Asa since Asa exorcised him in 1997. Jael locks Dean out of the house and everyone else in, but Dean is able to get in with help from Reaper Billie in exchange for owing her one. The hunters attempt to locate Jael who kills another hunter before possessing Jody. Jael reveals that he did not kill Asa as believed, rather Asa was killed by his best friend Bucky. While Jael is distracted with Bucky, the hunters manage to exorcise him from Jody and send Jael back to Hell. Bucky reveals that while hunting Jael, he and Asa got into a fight and Bucky accidentally killed him. Bucky framed Jael to protect himself and the hunters promise to spread the true story of Asa's death, disgracing Bucky. The next morning, the three dead hunters are burned while Billie arrives to try and collect Mary who she states doesn't feel like she belongs in the world. Mary refuses and though she decides not to return to the Bunker yet, she agrees to go out for breakfast with her children.
Source: Wikipedia
Source: Wikipedia
