This is the first appearance of the Canadian Technician, later named Chuck, played by Chuck Campbell.
Sgt. Bates: And our only real fighter pilot is off-world.
It is established that John Sheppard is the only fighter pilot with combat experience on Atlantis until the Daedalus arrives in Season 2.
The solution to the brotherhood of fifteen's 3x3 grid, where in each direction it has to add up to 15 is:
First row: 2, 9, 4
Second row: 7, 5, 3
Third row: 6, 1, 8.
It is established that Atlantis has always had deep space sensors, running in the background but they have never noticed them until now when they recognized the Wraith threat.
In this episode Zelenka says something in Czech. He says "Ježiši, já s těma hercema nemůžu dělat" which translates to "Jesus, I can´t do anything with those actors, dude!"
Chronologically, this episode takes place two weeks before "The Siege (2)".
It is revealed in this episode that the Stargates in the Pegasus Galaxy have 36 symbols, while in the Milky Way Galaxy they have 39.
McKay: I'm just trying to think of a combination that makes since with five in the middle.
Sheppard: 15. Its got to have something to do with 15... or nine, or five...
McKay: Shut up. Please? I'm trying to think.
Sheppard: I'm not going to shut up, Rodney. My life's at stake.
McKay: Exactly, so just simmer down, and let me save it!
Sheppard: You ever heard the term two heads are better than one?
McKay: That's a common misconception.
Sheppard: (to Kolya) Give me the gun. I'll shoot him myself.
Kolya: This is taking too long. Choose and go.
McKay: What, you got somewhere you've got to be?
Kolya: Choose and go.
McKay: (whispers to Sheppard) I've got nothing.
Sheppard: Thanks for the pep talk.
McKay: Nine to one. It's all I can think of.
Sheppard: Okay. Step back.
McKay: I'm sorry.
Sheppard: I'm not dead yet.
McKay: Yeah. Sorry.
Kolya: Major. Now.
Sheppard: I got it!
Sheppard: The Brotherhood of 15.
McKay: What about it?
Sheppard: The numbers one to nine can be put in a three-by-three grid so they add up to 15 in every direction.
McKay: Oh you're right. How'd you know that?
Sheppard: It was on a Mensa test.
McKay: You're a member of Mensa?
Sheppard: No, but I took the test.
Sheppard: You want to talk about this now, Rodney?
McKay: Right. Right. Okay.
Sheppard: Two, nine, four...
McKay: Seven, five, three, six, one, eight. That's it. That's got to be it.
Kolya: Good luck.
Weir: And we found something else. Rather unsettling.
Sheppard: I'm already unsettled. Show me.
Allina: None of us can know their plan.
Sheppard: They don't have a plan. Do you think getting attacked by the Wraith and getting chased out of the galaxy is something they planned for?
Kolya: The smart thing would be to kill me now.
Sheppard: You're right. I tell you what. I'm going to want points for this in the future. But if you ever do this again, I will kill you. Deal?
McKay: So, connect the symbols of the stones...
Pranos: ...And you should be able to triangulate where the center stone is buried.
McKay: (to Allina) You're a genius.
Allina: Thank you, Rodney.
Kolya: Yes. Okay, we're all very impressed but let's get on with it.
Weir: Good luck, Carson.
Beckett: Thanks, I'll need it.
Beckett: I can barely make it to the main land and back without crashing. For the last time; I'm a doctor not a bloody fighter pilot.
Allina: It doesn't look much like a map. I guess I was wrong.
McKay: Mm, possibly, although, um, well, you know, just because you originally thought it was a map doesn't make your initial assumption bad or incorrect. Well, incorrect, yes, but it was a good guess.
Allina: I'm sorry.
McKay: You're... very, very smart, and, uh... and attractive and whatnot, and, um... uh... you've got a lot of things going for you even when things don't--
Allina: Is everything all right?
McKay: (about Allina liking him) Should I have, um... Are you sure about this?
Sheppard: Yeah, I'm very sure.
McKay: What should I do?
Sheppard: You don't know what to do?
McKay: I just don't think I've ever been so tired.
Allina: But you're a scientist. Are you not used to this by now?
McKay: Mm, yeah, but my kind of science is the good kind of science, the kind you can do sitting in a chair or even lying on a couch.
McKay: I'm heading to bed.
Sheppard: Which bed might that be?
Ford: I think Allina might have a little crush on you, Doc.
McKay: Oh, she does?
Teyla: It is very clear to us all.
McKay: It is?
Sheppard: Well, everyone but you, apparently.
McKay: So who wants to go first [into chamber]? (no one volunteers) Seems sort of like a Sheppard thing.
Allina: It's a layout of the Sudarian villages. The walls of this monastery have protected it for ten thousand years.
McKay: It's beautiful.
Allina: It is. (looks at McKay) And yet my eye is drawn elsewhere. (McKay, clueless and not getting the hint, looks around to see what she is referring to)
Zelenka: Yes well, it may if people stop insisting on having food and liquid in such close proximity to the ten thousand year old equipment!
Weir: Okay, well keep me in the loop.
Zelenka: You are the loop.
Weir: Isn't that a nice thing to say.
Sheppard: We good?
McKay: Yeah! As far as I can see!
Kolya: Dr. McKay! It's so wonderful to hear your grating voice again. Hows the arm?
McKay: You wanna keep trading barbs or do you want to find the ZedPM. Look, let me out of here and I'll help you find it. But then you let my team go.
Sheppard: (Whispers to McKay) Shut up McKay.
Sheppard: You're alive?
Kolya: As far as I can tell.
McKay: Somebody give me a knife. (Kolya stares). You all have guns; someone give me a knife!
McKay: My eyes! I need my eyes for seeing!
McKay: I can't believe you never mentioned the MENSA thing?
Sheppard: I took the test. I never joined.
McKay: But you passed?
McKay: Well you know, we have a MENSA chapter on Atlantis...
Sheppard: Rodney, up the rope.
-Martin Gero was nominated for a Gemini Award for Best Writing in a Dramatic Series for this episode.
John Tierney (Alstrum) previously played a Monk in the Stargate SG-1 episode "Children of the Gods."
Adrian Hough (Pranos) previously played a Gou'ald Lieutenant in the Stargate SG-1 episode "Homecoming."
In Australia this episode aired on the July, 21 2005. It was interrupted midway through the episode due to the breaking events of the second (failed) terrorist attack in London. The episode aired again on the 28th.
-This episode aired in Canada on January 3, 2005 on The Movie Network and Movie Central.
-This episode aired in the UK on February 1, 2005 on Sky One.
-This episode aired in Australia on July 28, 2005 on Channel 7.
-Syndication Premiere: February 26-27, 2005.
Laura Mennell (Sanir) previously played Mary in the Stargate SG-1 episode "Demons."
McKay: I can't believe you never mentioned the Mensa thing.
McKay was referring to the organization for people with high Intelligence Quotients. Or most specifically those who are within the top 2% of any intelligence tests. It was founded in England in 1946.
Beckett: I'm a doctor, not a bloody fighter-pilot!
This refers to Star Trek, where the line "I'm a doctor, not a ..." is the trademark of Dr. McCoy (Bones).