10 Season
214 Episode
Stargate SG-1 - Season 4 Episode 20 Entity
Saving the world... one episode at a time
The SGC is invaded by an alien life force that takes up residence in the base computer system -- and in Major Carter.
- Year: 2007
- Country: Canada, United States of America
- Genre: Sci-Fi & Fantasy, Action & Adventure, Mystery
- Studio: Showtime, Syfy
- Keyword: space travel, space, travel, alien, alien planet, military, distant planet, secret military program
- Director: Jonathan Glassner, Brad Wright
- Cast: Ben Browder, Amanda Tapping, Christopher Judge, Michael Shanks, Claudia Black, Beau Bridges