Stargate SG-1
S04E20 Entity
The SGC faces an incursion from an extraterrestrial entity that embeds itself within the base's computer network and also inhabits Major Carter.
Season 4 Episodes
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7
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9
10
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19
20
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22
Small Victories (2)
The Other Side
Upgrades
Crossroads
Divide and Conquer
Window of Opportunity
Watergate
The First Ones
Scorched Earth
Beneath the Surface
Point of No Return
Tangent
The Curse
The Serpent's Venom
Chain Reaction
2010
Absolute Power
The Light
Prodigy
Entity
Double Jeopardy
Exodus (1)