Stargate SG-1 (1997)
S04E05 Divide and Conquer
Episode Overview
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.