Stargate SG-1 (1997)
S9E11 The Fourth Horseman (2)
Episode Overview
With the Ori plague spreading quickly, SG-1 believes that the Prior responsible for the outbreak may have the solution to stop it. Meanwhile, Gerak seeks to unite the Jaffa in support of the Ori, leading Teal'c and Bra'tac to start a resistance movement against him.
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S9