A military-science expedition team discovering how to use the ancient device, named the Stargate, to explore the galaxy. However, they encountered a...

O'Neill and the team return to Cimmeria, the planet where they destroyed Thor's Hammer to help Teal'c escape. They find that the Goa'uld have invaded...

SG-1 in their fight against the Goa'uld Empire's System Lords, the main being Sokar until "The Devil You Know" and then Apophis, after he regained...

O'Neill and Teal'c risk their lives to keep the Replicator bugs from gaining a foothold on Earth, while Carter helps the Asgard fend off a Replicator...

SG-1 trains a team of raw cadets, and Colonel O'Neill is forced to take them into a real-life battle situation when he learns of a possible alien...

O'Neill and Carter launch a risky plan with untested technology when Earth comes under attack by the Goa'uld. Carter must find a way to save Earth...

SG-1 discovers Daniel Jackson alive and living on an alien world, with no memory of who he is. The team hatches a plan to lure Anubis into a trap and...

With Jack still in stasis in the Ancient outpost buried in Antarctica, SG-1 tries to contact the Asgard. Meanwhile their new leader, Dr. Elizabeth...

As one team member transitions into a new role, another is met with hesitation in season nine. Having learned of the Ori's plan to control the mortal...

As the team embarks upon its tenth year, Vala, a former Goa'uld host turned freedom-fighter, joins SG-1 in their battle to defend the galaxy from the...

O'Neill, Carter and Jackson must escape Hathor's clutches, while Teal'c tries to raise a Jaffa army on Chulak. General Hammond must take desperate...

SG-1 must find a renegade Goa'uld who has been hiding on Earth for thousands of years.

The Asgard aid Earth in negotiating a nonagression treaty with the Goa'uld System Lords.

When Daniel goes insane, SG-1 must deal with the legacy of Machello's anti-Goa'uld technology.

SG-1 discovers a planet where children are used to acquire knowledge for the entire population, then discarded.

SG-1 must free an alternate reality Earth from a Goa'uld invasion after duplicates of Samantha Carter and Charles Kawalsky come through the quantum...

SG-1 is taken captive by an alien bounty hunter with uncertain loyalties.

SG-1 finds a medieval Christian society terrorized by Sokar and the Unas, and is accused of being possessed by demons.

SG-1 discovers a military camp where young men are trained to impersonate SGC personnel to infiltrate Earth.

Jackson deals with the apparent death of his wife, Sha're, at the hands of Teal'c.

SG-1 encounters an entire planet suffering from amnesia. The planet's leader returns to Earth with SG-1 to find a cure, but SG-1 suspects she may...

When Major Carter's father Jacob is kidnapped by Sokar, the SG-1 team must infiltrate a prison moon designed to look like hell to rescue him.

SG-1 must escape a hellish prison moon, and one of their worst enemies.

SG-1 returns from a mission and discovers that metamorphic aliens have taken over the complex.

The Tollan put Skaara and Klorel on trial to determine who will control the host body.

SG-1 receives alien brain implants that manifest themselves as a bizarre man, who tells them that they would not survive the procedure to remove him.

After a meteor strike buries the Stargate, O'Neill finds himself stranded on a planet with no hope of rescue.

O'Neill steals technology from the Tollan, and is forced to leave the Stargate program. Maybourne offers an intriguing proposal.

The members of SG-1 are imprisoned on a planet and become pawns in a war of ideology.

SG-1 discovers the mystical planet Kheb, and must find the Harcesis child of Apophis and Sha're before Apophis's army does.

An alien artifact causes Daniel to disappear, and the team looks for help from his institutionalized grandfather.

SG-1 faces creatures of mass destruction that even the Asgard can't control, and must destroy Thor's infested vessel before the Replicator bugs reach...