SG-1 must stop Apophis and Heru-ur from forming an alliance of their powerful forces, while Teal’c is captured and tortured by the Goa’uld.

When his former mentor dies, Dr. Jackson returns to his roots — and discovers an ancient Egyptian artifact containing a Goa’uld parasite.

A test gone wrong leaves Jack and Teal’c marooned in space aboard a damaged prototype attack ship

SG-1 investigates a conspiracy theorist who has detailed knowledge of the Stargate program.

The members of SG-1 are used as forced labor in an underground alien facility after their memories are erased by the ruling elite.

SG-1 is caught in a conflict between two civilizations trying to colonize the same planet.

Dr. Jackson is taken captive by an Unas while on an archaeological dig. The SGC mounts a rescue operation, but discovers a danger of their own.

The Russians recover a Stargate from the bottom of the ocean, and turn to the SGC for help when their experiments go awry.

O’Neill and Teal’c are caught in a time loop in the SGC, and must relive the same 10 hours over and over again.

When a member of the SGC tries to kill a Tok’ra, it is revealed that O’Neill and Carter may be victims of an untraceable form of Goa’uld mind control.

Teal’c is reunited with his lost love — a woman who claims to have found a way to communicate with her symbiote and defeat the Goa’uld.

A Tok’ra archaeologist arrives at the SGC with newly discovered technology, giving the SG-1 team superhuman powers.

A warring alien race offers to exchange their advanced technology for Earth’s help in defeating their enemy.

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 invasion.

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 Earth.

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

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

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

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

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

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.

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

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

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

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 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 not be who she appears to be.

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

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

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

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

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 mirror.

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

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

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

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

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 measures to rescue the team.

O’Neill, Carter and Jackson awaken from stasis in what appears to be the S.G.C. — almost 80 years in the future.

A cosmic accident causes SG-1 to be sent back 30 years into Earth’s past, where they must locate the Stargate and find a way home.

A young boy arrives through the Stargate, and warns of plot by invisible aliens to kill all of the human race in order to rob the Goa’uld of potential hosts.

A group of primitive aliens begin to fall deathly ill after SG-1 arrives.