Cameron Mitchell must go undercover inside the deadly Lucian Alliance to prevent his teammates from becoming casualties of an Alliance civil war.

Daniel and Vala travel to Atlantis in search of Merlin’s anti-Ori weapon, while Sam, and Mitchell join forces with Dr. McKay to lock out the Ori supergate.

When Ba’al comes to Earth seeking help, Stargate Command must capture his clones and determine which one is the genuine article.

Martin Lloyd seeks out SG-1 for assistance when his failed TV show based on the real Stargate program becomes a feature film.

The Jaffa take the fight to the Ori, using a genocidal weapon on their new worshipers and landing SG-1 in the middle of a war they can’t control.

Stricken with amnesia and on the run, Vala takes a job as a waitress as she tries to piece together who she is and what happened to her.

As the Ori invade the Jaffa planet Chulak, Vala and Daniel must deal with their leader: Vala’s young daughter, rapidly aged by the Ori to serve their purposes.

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.

As the Ori plague spreads rapidly, SG-1 hopes that the Prior who caused the disease may hold the key to its cure. Gerak tries to rally the Jaffa to the…

When SG-1 travels to an Asgard Protected Planet, Colonel Mitchell is accused of a murder he did not commit.

Multiple SG-1s show up at Stargate Command, leading the “real” team to conclude that they have each been inadvertantly displaced from different parallel realities.

Daniel is imprisoned on a world under the influence of the Ori, and the Prometheus is caught in a firefight when SG-1 tries to rescue him.

SG-1 is captured after a deal with the Lucian Alliance goes bad … and the planet’s Stargate goes missing. Meanwhile, a former System Lord attempts to rebuild his empire.

A tour of an off-world research base for a group of foreign diplomats turns dangerous when an insidious insect species gets loose.

Mitchell and Carter are shifted to another dimension, making them invisible to everyone at the S.G.C. Meanwhile, Teal’c and SG-9 discover that the Sodan have been brutally attacked.

An Air Force pilot attempts to reassemble SG-1 after they have gone their separate ways. An old “friend” arrives on Earth asking for Daniel’s help in finding an ancient treasure…

Daniel comes face to face with the Ori, a fiery race of beings who demand the worship of mortals. Elsewhere, Stargate Command encounters the first Ori missionary in our galaxy.

Jackson and Mitchell must join Vala on an interplanetary scavenger hunt when they learn that they are still bound together by an alien energy field.

SG-1 visits a world whose people once worshipped Vala as a god — and demand that she stand trial when she confesses to manipulating them.

Samantha Carter returns to Stargate Command when the Ori seize control of a planet, using an expanding force field to gain a foothold in our galaxy.

SG-1 investigates when evidence suggests that there are still Goa’uld hiding on Earth — including a former System Lord. Tensions between Earth and the Free Jaffa continue to mount.

Colonel Mitchell is injured in a skirmish with a warrior from a mythic tribe of rebel Jaffa, and is trained in their fighting techniques only so that he may engage…

SG-1 finds a genetically advanced Goa’uld-human hybrid created by Anubis, and returns him to Earth for study. But even keeping him alive may not be worth the risk.

While Daniel finds himself in a mysterious diner suspended between death and ascension, Jacob’s fate takes an unexpected turn, Jack and Sam consider their romantic lives, and Anubis unleashes his…

Relations between the U.S. and Russia are strained when Russian military leaders claim that the U.S. government has been compromised by the Goa’uld.

O’Neill goes to great lengths to keep the Ancients’ knowledge from falling into Goa’uld hands when the team discovers a second repository. The President replaces General Hammond with a civilian…

Anubis begins a systematic assault on Earth, and the planet’s only hope of salvation depends on whether SG-1 can find the Ancients’ mythical Lost City.

The Replicators begin a systematic attack of the Goa’uld, forcing Baal to come to Earth for help. The Jaffa Resistance risk their entire movement in an attempt to retake a…

The fate of the galaxy hangs in the balance as Sam and Jacob search for the only weapon capable of stopping the Replicator onslaught. O’Neill leads a defense of the…

SG-1 is called into action while a film crew is documenting the Stargate program, but the S.G.C. comes under investigation after the mission goes terribly wrong.

After the Prometheus responds to a distress call from a Goa’uld ship, Daniel Jackson finds himself a captive when Earth’s ship is stolen.

The Stargate is stolen, leading SG-1 to discover that the Trust has taken control of an advanced ship in orbit. Teal’c investigates a series of wide-spread Jaffa deaths.

Earth’s secret offworld base is attacked by Anubis’ forces, and Major Carter finds herself being hunted by the enemy. General Hammond and Jacob Carter make an unnerving discovery about the…

A film crew arrives to document the work of the S.G.C. for eventual disclosure to the public, but finds that the base’s personnel are less than eager to participate.

A duplicate of Colonel Carter seeks help from Stargate Command in defeating the Replicator Fifth, who she claims has found a way to counter the Asgard’s new weapon.

Daniel is stranded on another planet after the team’s arrival on an alien world sparks a violent civil war.

Teal’c is trapped in a virtual reality simulation, in which he must defend the base from a Goa’uld super-soldier incursion.

Teal’c becomes the chief suspect in a murder investigation after he moves into an apartment off-base. Carter considers her future with Pete.

The impending wedding of his son is the least of Teal’c’s worries when the Hak’tyl plan an uprising against the Goa’uld Moloc, driving a wedge between Teal’c and Ishta.

SG-1 must turn to a pair of convicted criminals to save a world from annihilation by the Goa’uld.