Castiel investigates the mass slaughter of angels and finds a lone survivor and an old friend. Meanwhile, Sam and Dean capture Gadreel, and Metatron begins the ending of his story.
Genres: Drama , Mystery , Sci-Fi & Fantasy
Keywords: angel , apocalypse , bromance , brother-brother-relationship , brothers , dead-mother , demon , demon-hunter , demonic-possession , exorcism , fighting-evil , four-horsemen-of-the-apocalypse , ghost , hopeful , horror , leviathan , monster , on-the-road , paranormal , paranormal-phenomena , purgatory , ressurection , supernatural , witch , gloomy , watch-series-online , dramatic , suspenseful , dark-fantasy , grand