Stargate SG-1 (1997–2007)
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1:05 | Trailer
Jonas Quinn returns to the SGC to ask for assistance in saving his nation. He explains that the naquadria was originally naquadah and a Goa'uld named Thanos started a chain reaction to ... See full summary »


Martin Wood


Brad Wright (developed for television by), Jonathan Glassner (developed for television by) | 3 more credits »





Episode cast overview:
Richard Dean Anderson ... Colonel Jack O'Neill
Amanda Tapping ... Major Samantha Carter
Christopher Judge ... Teal'c
Don S. Davis ... Major General George Hammond
Michael Shanks ... Dr. Daniel Jackson
Corin Nemec ... Jonas Quinn
Emily Holmes ... Kianna Cyr
Gillian Barber ... First Minister Dreylock
Patricia Drake Patricia Drake ... Lucia Tarthus
Julian Christopher ... Vin Eremal
Bill Nikolai Bill Nikolai ... Technician Vern Alberts


Jonas Quinn returns to the SGC to ask for assistance in saving his nation. He explains that the naquadria was originally naquadah and a Goa'uld named Thanos started a chain reaction to transform all of his planet's naquadah into naquadria. A large vein of naquadah has just been affected and the Kelownan scientists believe that the transformation will cause this large a deposit to explode, taking their entire nation with it. Written by trekkie4christ

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USA | Canada



Release Date:

23 January 2004 (USA) See more »

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Technical Specs


Sound Mix:

Stereo | Dolby Digital (Dolby 5.1)



Aspect Ratio:

16 : 9
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Did You Know?


The planet is named Langara after a Vancouver, BC golf course. See more »


When the Goa'uld possessing Kianna Cyr agrees to take the bomb the last part of the tunnel, she says the symbiote will protect her - however the Goa'uld is the symbiote, so she should not be talking of the symbiote in the third person. See more »


Dr. Daniel Jackson: [Looking at the Stargate] You miss it?
Jonas Quinn: Yeah, I do.
Dr. Daniel Jackson: Well, judging from what you've got to deal with back on Kelowna, I'm not surprised. I'd take life-threatening danger over one of those council meetings any day of the week.
See more »


Features Stargate (1994) See more »


End Title
Written by Joel Goldsmith
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User Reviews

One of the Best Episodes
17 February 2018 | by claudio_carvalhoSee all my reviews

Jonas Quinn visits the SGC to ask for help to save his planet Kelowna that is near destruction. He explains that the underground Naquadah is transforming into Naquadria and his planet is becoming unstable. Sam goes to Langara (Kelowna´s new name) and joins the research of Jonas Quinn and his assistant and girlfriend Kianna Cyr. Meanwhile the government of Langara arrives at the SGC to discuss a contingency plan to evacuate Langara, but there is friction when they learn the cause. Meanwhile Sam proposes a daring and dangerous plan to save Langara.

"Fallout" is one of the best episodes of"Stargate SG-1". Both storylines are tense and well resolved. Kianna was an interesting character but unfortunately the writers decided to waste her. My vote is eight.

Title (Brazil): "Fallout"

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