Supernatural: Season 9

After defeating the Leviathan, Sam and Dean set off on an epic quest to seal the Gates of Hell last season. Facing a series of trials, the Winchesters soon found themselves in the middle of an age-old power struggle between the King of Hell and legions of warrior angels. But with the angels cast out of heaven and walking the earth, things just got very unpredictable.

First aired: 2013-10-08