Prior to the opening credits, Olivia is seen hurtling through the windshield of her SUV and landing on the pavement. The windshields of all vehicles in North America are made from laminated glass (two sheets of tempered glass with a layer of resilient plastic between them) which are specifically designed not to shatter when violently struck.
Trivia: The name on the sign near the accident is Gruno & Dunder, an anagram spelling out UNDERGROUND. This is a clue to the next episode, "Night of Desirable Objects."
At the end, the FBI is seemingly satisfied that the shapeshifter is dead and everyone is accounted for. However, they only found one body, the nurse's. To close the investigation, they would need to find two bodies: the dead nurse, and the shapeshifter disguised as the nurse. Even using the incinerator, the shapeshifter couldn't have disposed of the nurse's body without a trace. So there's no reason why the FBI should close the case.
Trivia: The Observer can be seen walking across the foreground just after the first shot of the crash.
Trivia: The glyph code for this episode is TOWER.
Walter: Feel his anus, it's soaking wet.
Walter: You know, there's something you don't know about me, Son.
Peter: What's that? That once you enter a grocery store, you never leave again? Ever?
Walter: We need to celebrate and make sure that Agent Dunham can attend. I want to see her face when she eats my pudding.
Peter: That's disturbing.
Walter: Agent, I need this body taken back to my lab.
Paramedic: Hey, lunatic, this body is going to the morgue. Is he crazy?
Paramedic: Who is the agent in charge here?
Jessup: I am. Take it wherever he wants.
Jessup: Is he crazy?
Peter: Oh, yeah.
Walter: Peter! Peter! They said I can ride in the back with the body. Can I?
Peter: Sure. Of course you can. Stay out of the medications, though. Please.
Peter: What are you thinking?
Walter: It's funny. I love custard, but I hate flan. Which could be an issue of semantics. Or difficulty with the French. Which I doubt, given my near obsession with moules à la crème Normande.
Jessup: Is this you?
Peter: Yeah.. My father recently took a little trip down memory lane, and for no reason has become wildly obsessed with my childhood. He also likes to check and make sure that I'm still breathing when I'm asleep, which is a little creepy.
Walter: Focus, please.
Olivia: So who was she?
Peter: Walter thinks that she was a shape-changing soldier from another universe. He thinks that might be where you went. Hmm. Do you think it's a bad sign that I can say that out loud and neither one of us thinks I'm crazy?
Broyles: You surprise me, Mr. Bishop.
In Germany, this episode was dedicated to the memory of Hans-Werner Bussinger, the German voice of Walter Bishop, who passed away in September 2009.
UK: October 4, 2009 on Sky1/Sky1 HD
Latin America: October 27, 2009 on WB
Sweden: November 19, 2009 on Kanal 5
Australia: December 23, 2009 on GO!
The Netherlands: March 7, 2010 on Net5
Germany: March 8, 2010 on ProSieben
Poland: September 9, 2010 on TVN
Finland: September 22, 2010 on MTV3
Czech Republic: December 10, 2010 on Nova Cinema
Slovakia: March 12, 2012 on Markiza
The second season saw the show's production move from New York to Vancouver.
Injokes: A scene from the episode "Dreamland" from the TV series The X-Files can be seen on the apartment resident's TV as the shapeshifter alters his face. Senator Kennedy Taylor at the hearing also mentions "unsubstantiated alien invasions" and "the old 'X' designation" of the FBI, both references to The X-Files and the actor playing the Senator Taylor, Ken Camroux, had a recurring role on that show. Tegan Moss, who plays Rebecca, also had a recurring role on the series as Young Dana Scully.
The second senator, played by actor Neil Schell, isn't named in the end credits, but his nameplate at the hearing identifies him as Neil Schell.
Music: Can't Find My Way Home (Blind Faith)
Jessup: There are more things in Heaven and Earth then are dreamt of...
Referencing Shakespeare's Hamlet, Scene v. The full line is "There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy."
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