When powerful aliens come through Earth’s Stargate, Colonel Jack O’Neill returns to Abydos to retrieve Daniel Jackson, who has discovered that the alien transit system includes much more than the two planets.
Trapped on board the Odyssey, the members of SG-1 must live out the rest of their lives together when Carter activates a time dilation field to save the ship from destruction.
SG-1 hatches an elaborate plan to try and capture Adria, using Vala as bait.
Earth provides sanctuary for Vala’s estranged, con artist father after he provides intel about a Jaffa plot to attack the planet.
When a terrorist attack decimates a Jaffa summit Teal’c strikes out on a quest for revenge, believing that the perpetrator is one of his own pupils.
SG-1 realizes they have stepped through the gate into another planet’s museum — but are mistaken for a band of zealous rebels who have taken hostages.
When the Lucian Alliance puts a bounty on SG-1’s heads, Cameron Mitchell finds himself a target while attending his high school reunion.
When SG-1 discovers that Daniel Jackson has been turned into a Prior of the Ori, they must determine whether or not his plan to destroy the Ori is genuine.
An experiment gone wrong pulls Samantha Carter into a parallel reality, where she must save Earth from an Ori assault before she will be allowed to return home.
SG-1 tries to defend a planet from the Ori by hiding its people in another dimension. Vala attempts to convince her husband Tomin of the Ori’s true motives.