: Sam does not want his soul back because of the trauma it suffered in Hell. He attempts a "soul-proofing" ritual provided by Balthazar that requires the "blood of the father." Since John Winchester is dead, Sam targets Bobby Singer.
: Sebastian Roché assists Sam in his attempt to remain soulless.
: Despite Dean failing the 24-hour test, Death retrieves Sam's soul anyway, noting that he wants the Winchesters to continue investigating "souls" and Purgatory. He places a "mental wall" in Sam's mind to block the memories of Hell. Key Characters & Guest Stars
In the TV series Supernatural , " Appointment in Samarra " is the . It is a pivotal episode where Dean makes a bargain with Death to retrieve Sam's missing soul. Episode Summary