Stargate SG-1/Season 4/Episode 20

Episode 19 Episode 21

S4 · E20

Feb 9, 2001 · 44 min

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Synopsis

The SGC is invaded by an alien life force that takes up residence in the base computer system -- and in Major Carter.

Guest stars

Gary Jones photo

Gary Jones

Walter Harriman

Dan Shea

Sylvester Siler

Teryl Rothery photo

Teryl Rothery

Janet Fraiser

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Credits

Directed byAllan Lee

Written byPeter DeLuise

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