Sam, Castiel, and Dean investigate a string of deaths with biblical elements on Supernatural. "Jack In The Box" is the 19th episode of the show's 14th season.
Sam and Castiel track down a Shaman who may be able to help a friend on Supernatural. "Unhuman Nature" is the seventh episode of the show's 14th season.
Why do they call this place The Empty? It's full. It's full of sorrow and despair playing over and over again of angels and demons dreaming about their regrets. Forever.