Supernatural - Season 6 Episode 11 -

Dean goes to Dr. Robert to have a 3 minutes near-death experience to meet Death. They have a meeting and Death proposes Dean wear his ring for 24 hours; in return, Death would retrieve Sam's soul, return it to Sam's body and put up a wall to isolate his traumatic period in Hell. Dean becomes Death for a day with the guidance of Tessa and soon he learns that the natural order cannot be violated. Meanwhile Sam summons Balthazar to help him find away to keep his soul from being put back, but he must kill Bobby to do it.