<Tr> <Th> 115 </Th> <Td> 11 </Td> <Td> "Appointment in Samarra" </Td> <Td> Mike Rohl </Td> <Td> Sera Gamble & Robert Singer </Td> <Td> December 10, 2010 (2010 - 12 - 10) </Td> <Td> 3X6061 </Td> <Td> 2.27 </Td> </Tr> <Tr> <Td_colspan="8"> Dean meets with and makes a deal with Death: if Dean will take Death's place for an entire day, Death will regain Sam's soul and' fix' the tortured parts . Dean tells Bobby and Sam of the plan, which Sam strongly disagrees with, but Dean goes ahead anyway . Dean is accompanied by Tessa to reap various people . Eventually, however, Dean has to reap a 12 - year - old girl with a heart condition, which he refuses, and the girl begins to make a miraculous recovery . However, due to the change in the' natural order', others die instead . Failing in the deal, Dean reaps the girl, admitting that though the natural order sucks, it must be adhered to . While Dean is acting as Death, Sam summons the angel Balthazar to learn how to prevent his soul from returning to his body . Balthazar admits that there is a spell, but it requires the "blood of the father" - patricide . Since Sam's father had passed on years ago, a surrogate - Bobby - would be necessary . Sam then attempts to chase down Bobby, who catches on to Sam's attempt to kill him and tries to stop him . Eventually, Sam gains the upper hand, and prepares to kill Bobby, only to be stopped and knocked out by Dean . Unsure of what to do about Sam, Dean is surprised by Death, who has come to reclaim his ring . Dean realizes that Death's game was rigged, and Death brushes off the accusation, revealing that he will still retrieve Sam's soul as Dean has learned a lesson about the natural order of things . Death also hints to Dean that there is some important realization about human souls that he must discover . Death then appears to Sam, soul in tow, and instructs Sam not to scratch at the wall he built around the Hell memories . Death then pushes the soul into a screaming and pained Sam . </Td> </Tr> <Tr> <Th> 116 </Th> <Td> 12 </Td> <Td> "Like a Virgin" </Td> <Td> Phil Sgriccia </Td> <Td> Adam Glass </Td> <Td> February 4, 2011 (2011 - 02 - 04) </Td> <Td> 3X6062 </Td> <Td> 2.25 </Td> </Tr> <Tr> <Td_colspan="8"> After Death placed Sam's damaged soul from Hell into Sam's body, Sam awakens back to his normal state only to have no stable memory of when he was around with no soul . Dean and Sam investigate some disappearances of girls who are virgins in Portland, Oregon only to find that dragons are behind the kidnappings . Bobby sends Dean to Dr. Visyak, a professor in medieval mythology who has had experience in fighting dragons . She tells Dean that in order to kill the dragons, he needs a blade that has been forged in dragon's blood . However, they can use a powerful dragon - killing sword, one of which she has in her basement . Meanwhile Sam is researching where the dragon's hideout is and finds out they are staying in the underground sewers . Sam then begs for Castiel to be in his presence at which point Castiel shows up and tells Sam everything that has happened while he was soulless . Sam and Dean then go into the sewers and find virgin girls locked in a cage . As Sam and Dean are attempting to unlock the cage, they are interrupted by two dragons (in human form) and have a fight . They manage to kill one of the dragons while the other one escapes . They end up back at Bobby's and Sam apologizes to Dean for everything he has done, saying that Castiel told him everything . Bobby has learned the dragons are trying to open Purgatory to let something "big" walk the planet named the "Mother of All" and that they are reading an "instruction manual" on how to open it . Meanwhile the dragons still have one of the virgins; they work an incantation and shove her into a fiery pit . The virgin then flies out of the pit possessed by the "Mother of All". </Td> </Tr>

What episode does dean find out sam is soulless
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