Stargate SG-1 Season 9 Episode 10 - The Fourth Horseman

Airdate: 2005-Sep-16

Episode summary:

After an SGC officer returns to Earth after unknowingly being infected with the Ancient Plague, the virus quickly spreads throughout the United States. Not wanting the Ori to gain control of the Milky Way Galaxy, Orlin yet again descends to help Carter find a cure.

About Stargate SG-1 series:

Stargate SG-1 is a science fiction series based on the original film Stargate. It involves the team SG-1 going on various adventures to different a...Show more >