Ten years into the future, the former members of SG-1 must send a message into the past to prevent the extinction of the human race.

Jackson’s teammates notice a disturbing change in him when he is reunited with the Harcesis child and given the Goa’uld genetic memory.

SG-1 finds a deserted Goa’uld palace, where a beautiful device causes suicidal tendencies.

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.

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

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

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 Earth.

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 mirror.

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 not be who she appears…

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.

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.

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

After gating to a world on the edge of a black hole, the S.G.C. cannot disengage the Stargate. All of Earth becomes endangered by the time-distorting gravity field.

SG-1 discovers an elderly man known for developing technology to fight the Goa’uld. Daniel is tricked into switching bodies with the man, Ma’chello, who believes he is “owed” for all…

Apophis, SG-1’s greatest enemy, seeks sanctuary from Sokar and ends up near death in the S.G.C. infirmiry.

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

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 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.

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

Carter is possessed by a Goa’uld who claims to be an enemy of the System Lords.

SG-1 is put on trial and exiled to a prison world, where a woman maintains a strange control over her fellow prisoners.

SG-1 is imprisoned in a virtual reality realm and forced to relive the worst moments of their lives over and over.

Jackson becomes addicted to the effects of a Goa’uld sarcophagus, and falls for the planet’s manipulative princess.

SG-1 returns to Cimmeria, and finds that without protection from the Asgard the planet has been invaded by the Goa’uld.