4x22 Lucifer Rising(Τελευταίο 4ης σεζόν)

Sam and Ruby capture Lilith's minion (Juliana Wimbles) to question her on Lilith's whereabouts. Once they get the information, Ruby stops Sam from killing the minion because she wants him to drink all the other demon's blood in addition to her own. Sam hesitates to kill the innocent person being possessed, but gives in after hearing a supernaturally-altered voicemail from Dean in which "Dean" threatens to kill Sam the next time he sees him. Meanwhile, Dean is transported to a room without any exits, where Zachariah explains to him that high-ranking angels such as himself are not trying to stop the final seal from being broken, in fact, they have secretly been manipulating events to start the Apocalypse, for they believe that it will cleanse the earth and bring Paradise. Dean's task is not stopping the Apocalypse from starting, but ending it once it has. Dean is furious at Castiel for deceiving him. Although Castiel refuses to help at first, he changes his mind and helps Dean escape, banishing Zachariah with a blood sigil. After getting Sam's location from Chuck, Castiel transports Dean there while he stays behind to confront Chuck's archangel. Dean arrives in time to see Sam confronting and overpowering Lilith, but Ruby keeps him from warning Sam that Lilith's death is in fact the final seal. Goaded by both Lilith and Ruby, Sam kills Lilith with his powers, unwittingly breaking the final seal. Ruby then reveals that she has been deceiving Sam all along to lead him to this moment, having worked for Lucifer the whole time. When Dean finally manages to break in, Sam distracts Ruby by grabbing and holding her in place so that Dean is able to kill her with her own knife. With the last seal broken, the brothers look on in terror as Lucifer begins to emerge from his opened cage.