I'd Follow You Down

(Season 10 AU Plotline). Dean's been cured, but at a dastardly cost. Metatron's been taken to Heaven's jail, but it's not certain how long the angels will be able to keep him there and one choice could leave Sam alone forever. New paths will be forged, suprising allies are made, and new secrets will come to light. The only question is how and when will this all end for everyone?