Writer:	Brad Wright, Robert C. Cooper, Robert C. Cooper
Director:	David Warry-Smith
Star:	Joe Flanigan (Major / Lt. Colonel John Sheppard),  Torri Higginson (Dr. Elizabeth Weir),  Rachel Luttrell (Teyla Emmagan),  Rainbow Sun Francks (Lt. Aiden Ford),  David Hewlett (Dr. Rodney McKay)
Recurring Role:	Boyan Vukelic (Sgt. Stackhouse),  Christopher Heyerdahl (Halling),  Paul McGillion (Dr. Carson Beckett),  Craig Veroni (Dr. Peter Grodin)
Guest Star:	Meghan Black (Marta),  Casey Dubois (Wex),  Reece Thompson (Jinto)

International Airdates:

-This episode aired in Canada on July 26, 2004 on The Movie Network and Movie Central.
-This episode aired in the UK on October 26, 2004 on Sky One.
-This episode aired in Australia on March 31, 2005 on Channel 7.
-Syndication Premiere: October 8-9, 2005 (edit) Between the original Stargate film, Stargate SG-1 and Stargate Atlantis, this is the first time that Jack O'Neill is neither seen nor mentioned. (edit) This is only the second episode of either Stargate SG-1 or Stargate Atlantis not to feature any of the characters from the original movie, Stargate. The other is the SG-1 episode "Nightwalkers". (edit)

McKay: If this thing feeds on energy, we could be in big trouble. And when I say we, I mean you, because I won't actually be around for much longer. (edit) Sheppard: I trust Teyla.
Weir: So do I. But Teyla trusts her people. If we tell her, she'll want to tell them. And I need more time to get to know them. (edit) Weir: The Ancients were smart enough to build fail safes with their other technology. I mean, this entire city, it rose from the deep of the ocean when danger was imminent. Why would they design a personal shield that could kill you? (edit) Weir: But McKay's been through it, and he didn't find anything helpful. And he is the smartest guy here.
Beckett: So he likes to tell us. (edit) McKay: Oh, thank you. I'm hungry already. What am I going to do? If I don't get this stupid thing off, I'll be dead by the end of the day!
Beckett: Relax, you can live three or four days without water.
McKay: Yeah, I'm talking about food! (edit)

The barren planet that the team sent the entity was designated M4X-337. (edit) Goof: McKay is seen holding a chocolate bar in the Gate Room. When the shield device falls off, he takes the chocolate bar from his jacket pocket. He couldn't have placed it there since the shield was surrounding his whole body. (edit) Goof: Right at the end, after the entity has gone through the gate, we get an overhead shot of McKay lying on the ground in front of the gate. His legs are stretched out straight. In the next shot, one of his legs is bent. This shouldn't be possible, since he was unconscious. (edit) Goof: It is never said that the obvious fact that Dr. McKay can still breathe through the shield could be a hint to a solution. Physically, if McKay can breathe, he should also be able to pass liquids through his mouth. The lack of curiosity from the characters or even a tangential reference to what the difference may be is rather strange, especially since many of the characters are scientists. (edit) Chronologically, it is only a couple of days since the team arrived at Atlantis, thus it is a couple of days since the events in "Rising (2)". (edit)

Horror movies:

The hockey mask reference indicates Sheppard used Friday the 13th as the basis for the bedtime story he told the Athosian children. He said Nightmare on Elm Street will be next. (edit) Sheppard: I think we're going to need a bigger boat.

Chief Brody said this to Quint after the shark briefly appeared to him in the movie Jaws. It's a line often quoted in reference to a problem that is much larger than it first appeared. (edit) McKay: Dead man talking.

This is a reference to the term "Dead Man Walking", which is used to describe a person who is being transported to his execution. (edit)