: During withdrawal, Sam suffers intense hallucinations, seeing himself tortured by the demon Alastair , being accused of betrayal by his 14-year-old self , and receiving misguided encouragement from a vision of his mother, Mary .
: Chooses to swear an oath of fealty to God and the angels, believing it is the only way to save Sam from becoming a monster. [S4E21] When the Levee Breaks
: Directed by Robert Singer and written by Sera Gamble. It is one of only three episodes in the entire series where no characters die. It is one of only three episodes in
: Faces internal conflict after being ordered to sabotage the brothers' efforts, ultimately capturing Anna Milton when she confronts him about his actions. Lore and Production Details : Under orders, Castiel surreptitiously releases Sam from
: Portrayed as a "villain protagonist" struggling with a supernatural addiction he believes is necessary to kill Lilith and stop the apocalypse.
: Under orders, Castiel surreptitiously releases Sam from the panic room. After a tense standoff where Sam dares Bobby to shoot him, Sam escapes and reunites with Ruby to consume more demon blood.
: Dean and Bobby lock Sam in a panic room to force him to detox "cold turkey" from his addiction to demon blood.