The Guardian

Mary Winchester was supposed to die that night, and she would have if Dean had not run into the room. When Dean ran in, a certain angel made a choice to intervene. Castiel, Dean's guardian angel, saves Mary Winchester from a horrible fate and keeps the Winchester family intact, at least for a little while.

Years pass and Sam Winchester, the middle child of three, is graduating from high school. His older brother, Dean, couldn't be prouder. His younger brother, Adam, could care less. Things are going well for the Winchesters... at first.

Dean starts getting nightmares about being chased by hounds only to be saved by a blue-eyed man with shadowy wings. Sam's best friend, Brady, is proving to be a bad influence and perhaps even dangerous. Adam struggles with his own visions of a man with yellow eyes who tells him to hurt people.

Something dark is coming, and the Winchester brothers, for once, are not prepared for what lies ahead.