Dean: You know, it's kind of funny, talking to a messenger of God on a cell phone. It's, you know, like watching a Hell's Angel ride a moped.
Castiel: This isn't funny. Dean. The voice says I'm almost out of minutes.
Future Dean: Okay. If you're me... then tell me something only I would know.
Dean: Rhonda Hurley. We were, uh... 19. She made us try on her panties. They were pink. And satiny. And you know what? We kind of liked it.
Future Dean: Touché.
Dean: Oh, come on, you don't trust yourself?
Future Dean: No. Absolutely not.
Future Dean: Sam didn't die in Detroit. He said "yes."
Dean: "Yes"? Wait. You mean..
Future Dean: That's right. The big "yes." To the Devil. Lucifer's wearing him to the prom.
Lucifer/Sam: You don't have to be afraid of me, Dean. What do you think I'm going to do?
Dean: I don't know. Maybe deep-fry the planet?
Lucifer/Sam: Why? Why would I want to destroy this stunning thing... beautiful in a trillion different ways. The last perfect handiwork of God? You ever hear the story of how I fell from grace?
Dean: Oh, good god, you're not gonna tell me a bedtime story, are you? My stomach's almost out of bile.
Lucifer/Sam: You know why God cast me down? Because I loved him. More than anything. And then God created... you. The little... hairless apes. And then He asked all of us to bow down before you, to love you more than Him. And I said, "Father... I can't." I said, "These human beings are flawed, murderous." And for that... God had Michael cast me into Hell. Now, tell me... does the punishment fit the crime? Especially when I was right? Look at what six billion of you have done to this thing, and how many of you blame me for it?
Dean: I know what you are.
Lucifer/Sam: What am I?
Dean: You're the same thing, only bigger. The same brand of cockroach I've been squashing my whole life--an ugly, evil, belly-to-the-ground, supernatural piece of crap. The only difference between them and you is the size of your ego.
Lucifer/Sam: I like you, Dean.
Sam: Thank you. Really. Thank you. I won't let you down.
Dean: Oh, I know it. I mean, you are the second-best hunter on the planet.
Sweden: December 6, 2009 on Kanal 5
UK: February 24, 2010 on LIVING
Portugal: April 26, 2010 on AXN
Spain: September 13, 2010 on AXN
Germany: January 10, 2011 on Sky Cinema Hits
Czech Republic: July 29, 2011 on Prima COOL
Finland: March 27, 2012 on Sub
Slovakia: April 18, 2013 on Markiza
Injoke: As Dean looks out the window across the Apocalypse landscape, a movie marquee shows "Route 666" is now playing. A reference to the first season episode of the same name.
Music: Do You Love Me (The Contours)
Dean: So we're just going to walk in, we'll be the Dynamic Duo again?
Referencing the common nickname for Batman and the various Robins. Batman and the original Robin, Dick Grayson, were created by Bob Kane in 1939 and 1940, respectively. The DC Comic Book heroes have been seen in many TV shows and movies since.
Dean: Just when you thought you were out, they pull you back in, huh, Sammy?
Referencing the 1990 movie The Godfather: Part III, spoken by Michael Corleone (Al Pacino) when he tries to leave his past with the Mafia behind but is inevitably pulled back in.
Dean: I thought I smelled your stink on this Back to the Future crap.
Referencing the Back to the Future movies (1985) starring Michael J. Fox as Marty McFly, a teenager who travels through time using his mentor Doc Brown's (Christopher Lloyd) time-traveling device, mounted in a DeLorean.
Zachariah: Onward, Christian Soldiers.
Referencing the 19th century English hymn composed by Sabrine Baring-Gould and Arthur Sullivan. It refers to Christians as the soldiers of Christ.
Future Dean: The last thing they need to see is a version of The Parent Trap.
Referencing the Disney 1961 movie starring Hayley Mills as identical twins who are raised separately by their divorced parents with no knowledge of each other's existence. When they meet each other at summer camp, they soon scheme to bring their parents back together. Mills starred in three sequel and a remake was produced in 1998.
Dean: Oh, well, if it isn't the Ghost of Christmas "Screw You."
Referencing Charles Dickens 1843 novel A Christmas Carol, which tells the tale of a miser, Ebenezer Scrooge, who despises Christmas. His partner Jacob Marley sends him the spirits of Christmases Past, Present, and Future to teach Scrooge the error of his ways. The novel has been rendered into dozens of movies, TV movies, plays, musicals, and very special Christmas episodes of various TV shows.