The episode features three primary storylines that converge as the season nears its finale:
In , titled " The Great Escapist ," the Winchester brothers search for the scribe of God, Metatron, to help them with the final trials to close the gates of Hell. Episode Summary Watch www xrysoi se Supernatural S08E21
At the end of the episode, Metatron reveals the third and final trial required to close the gates of Hell: . As they leave to begin, they find a bloodied Castiel collapsed on the road, seeking their help. Where to Watch Supernatural Season 8 Episode 21 Recap: The Great Escapist The episode features three primary storylines that converge