The team find a hidden Wraith girl, cared for by a man with a serum stilling her hunger. Beckett wants to perfect a retrovirus turning Wraith into Humans.



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Episode cast overview:
Stephen Dimopoulos ...
Tom Bates ...
Nico McEown ...
Blake Stadel ...
Screaming Woman
Kayma Seamark ...
Young Wraith


The team arrives in a village where all the people are hiding in a bar. Village elder Goran tells it is not safe to be outside as once about every three months the Daimos sucks the life out of a few people. Ten years ago a ship from the sky crashed and the villagers killed all but one of the monsters inside. Sheppard promises to take care of this Wraith and Ronon is able to track it to a cave. Inside they find a Wraith girl, who runs into the arms of a man, Zaddik. He tells he rescued Ellia ten years ago and has been caring for her ever since. Zaddik has developed a serum that allows her to survive without feeding. Dr. Beckett wants to know all about this serum. He also sees possibilities to perfect a retrovirus that he is working on, turning Wraiths into Humans. Written by Arnoud Tiele (

Plot Summary | Plot Synopsis






Release Date:

26 August 2005 (USA)  »

Company Credits

Production Co:

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Technical Specs


Sound Mix:

(Dolby 5.1)| (5.1 surround)


Aspect Ratio:

16:9 HD
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Did You Know?


Jewel Staite had never seen "Stargate: Atlantis" when she signed for the episodic role of Ellia, so she didn't know how a Wraith looks. It was her first role using prosthetics. The producers were so impressed with her work that they wanted her to join the show with a more important role, so in the season 3 finale she started playing Dr. Jennifer Keller. See more »


Dr. Rodney McKay: What?
Boy: Is it true? You're going to hunt the Deimos?
Dr. Rodney McKay: It looks that way.
Boy: I heard it has two heads, and can turn you to stone just by looking at you!
Dr. Rodney McKay: Well, you heard wrong.
Boy: My uncle says it'll come and take me if I don't do my chores.
Dr. Rodney McKay: He said that, huh? Well then, if we get rid of it, you've got nothing to worry about. You'll never have to do chores ever again.
Boy: Really?
Dr. Rodney McKay: Yes. Look... go away!
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Main Title
Composed by Joel Goldsmith
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User Reviews

Can't believe that was Jewel Staite
4 November 2006 | by (United States) – See all my reviews

I've watched "Instinct" several times, but never after I became a Firefly addict. I don't remember exactly what Jewel said, and I must not have been paying too close attention to the character Ellia, but there was Jewel's voice. Not her face, under all that makeup, but it was her voice. Surprise! Good going Jewel! Hope to see in you more. I look forward to you playing Liz in "The Tribe." Wow, I have to add a few more lines to fill in some kind of limit. Well, that's not to difficult to do. I guess I would have to add that I thought Jewel is one of the better actresses I have seen. Of course that's just stating the obvious, but this thing want me to add more lines. Yes Jewel, it's not an easy thing to do well, this acting. You seem to have mastered it quite well, and I look forward to seeing what you learn in the future.

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