SG-1 must team up with their biggest enemies to track down Merlin's weapon in the tenth season two-parter.
The SG-1 co-star discusses her directing career and the Devlin/Emmerich reboot in a new interview.
The Stargate veteran plays a scientist in this Friday's episode.
The Ori invasion force arrives -- along with Vala Mal Doran -- in SG-1's tenth season premiere.
SG-1 searches for Merlin's weapon on the eve of the Ori invasion. Rewatch SG-1's ninth season finale with us this week!
The followers of the Ori attack Earth with a deadly plague in Stargate SG-1's ninth season two-parter!