Stargate SG-1 S9E10 · The Fourth Horseman (1)

Stargate SG-1

Season 9 · Episode 10 · The Fourth Horseman (1) · 44 min

Earth is infected with a deadly Ori plague, prompting an ally from SG-1's past to come to their aid. Gerak proposes that the Free Jaffa follow the Ori religion.