<P> Bobby tracks Lilith to New Harmony, Indiana . Dean does not want to attack unprepared, but he refuses to seek help from Ruby . Sam secretly summons her and asks for her knife, and Ruby tells him that his dormant psychic abilities could easily kill Lilith, whose guard is down as she is on "shore leave". Sam considers the alternative, but Dean shows up and tricks Ruby into a devil's trap--mystical symbols capable of rendering a demon powerless--and the brothers take her knife and leave . Despite Dean's objections, Bobby insists that he accompany them, and draws attention to Dean's hallucinations . With his demise rapidly approaching, Dean has begun "piercing the veil", allowing him to glimpse the demons' true forms . </P> <P> When the trio arrive in New Harmony, they discover that Lilith is possessing a young girl (McCormick) and terrorizing her family . Pretending to be their daughter, Lilith kills the family dog when it is "mean" towards her and snaps the grandfather's neck after he seeks help from neighbors . As Bobby blesses a waterline running to the sprinklers of the family's home, Sam and Dean dispatch some of the demons who have taken over the neighborhood . Ruby appears and angrily confronts them, but is stopped short by an oncoming horde of demons . The three of them run into the house as Bobby activates the sprinklers, creating a barrier of holy water . While Dean takes the girl's father to safety in the basement, Sam and Ruby go upstairs and split up in search of Lilith . Sam finds the possessed girl in her bedroom, and although initially hesitant he prepares to strike until he is stopped by Dean, who reveals that Lilith has left her . As midnight approaches, they take the rest of the family into the basement . </P> <P> Sam begs Ruby to teach him how to use his abilities, but she tells him that it is too late . Dean accepts his fate as the clock strikes midnight, but runs from the approaching hellhound . The three barricade themselves inside a room, but Dean quickly realizes that Lilith has taken over Ruby's host . Claiming to have sent Ruby "far, far away", Lilith telekinetically pins the brothers down and lets in the hellhound . As Dean is mauled to death, Lilith blasts Sam with white energy from her hand . Horrified to see that it has no effect, she flees her host before Sam can retaliate . A devastated Sam cradles Dean, whose soul is then shown in Hell hanging from a vast landscape of chains and meathooks while fruitlessly screaming for Sam . </P> <P> "No Rest for the Wicked" marked the final appearance of Katie Cassidy as the demon Ruby . Dismissed for budgetary reasons, the actress was replaced by Genevieve Cortese for the fourth season . The writers intended Samantha Ferris to return as hunter Ellen Harvelle, a guest stint Ferris believed would have ended in her character's demise . She ultimately declined the offer because it "could cost (her) money and work". Following the mythological Lilith's role of "destroyer of children", the demon takes on a child host portrayed by Sierra McCormick . Series writer Sera Gamble commented that it was an "interesting" choice because it presented Lilith as "creepy and kind of molesty". </P>

What episode of supernatural does dean go to hell
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