: Unable to defeat the demon with Ruby’s knife, Sam falls back on his controversial psychic powers to exorcise Samhain, a decision that visibly strains him and angers both Dean and the angels.
: The angels reveal that the summoning of Samhain is one of the 66 Seals that will free Lucifer. To prevent it, they offer a cold solution: smiting the entire town, killing everyone in it. The brothers must race to stop the witch, Tracy Davis, before the angels "purify" the area. A Test of Faith [S4E7] It's the Great Pumpkin, Sam Winchester
This episode marks a significant turning point in the series' mythology: : Unable to defeat the demon with Ruby’s
: The episode features Ashley Benson , who later became famous for Pretty Little Liars , as the witch Tracy Davis. The brothers must race to stop the witch,
: This is the first time Sam Winchester comes face-to-face with the angel Castiel.