Sam receives a visit by Jessica; he tries to have a normal life by settling down at a town and working at a restaurant. Meanwhile, Dean teams up with Castiel to track down the archangel Raphael, as Castiel believes Raphael knows God's location. They manage to lure him out, however, Raphael claims that God is dead and suspects Lucifer raised Castiel from the dead. A group of hunters find Sam and want him to join on a demon hunt, but Sam refuses. The hunters return defeated and hold Sam's restaurant coworker hostage, forcing Sam to tell the truth about his involvement in the Apocalypse. Later, Jessica visits again, only this time it is really Lucifer, who informs Sam that he wants to use him as his vessel.
Source: Wikipedia
Source: Wikipedia