Sam's condition worsens.
Sam recognizes a symbol from a Stanford class as the "Messenger from God," which leads the brothers to Colorado to find Metatron.
After God left, the archangels began to scheme. Fearing that they might get their hands on the real power of the word of God, Metatron ran and hid himself from everything.
Naomi tried to catch Castiel. Crowley arrived with the help of an angel, stealing the tablet and shooting Castiel.
Kevin realized that he was being held captive by Crowley. Before Crowley could do any damage to Kevin, Metatron saved him.
Sam and Dean learn the third trial is to cure a demon.
The brothers set off and discover a bloody Castiel on the road.