Stargate SG-1
S04E05 Divide and Conquer
Title: Divide and Conquer Plot: An attempt on a Tok'ra's life by a member of the SGC uncovers a sinister plot involving O'Neill and Carter. It becomes apparent that they might be under the influence of a mysterious and undetectable Goa'uld mind control. As the team races against time to find a solution, they must confront the possibility that one of their own could be manipulated into committing betrayal.
Season 4 Episodes
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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)