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.

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.

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.

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

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.

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.

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

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.

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…

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.

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.

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

The team finds an impoverished world enslaved by a Goa’uld underlord, but their plans to free it may be compromised when Jonas experiences unexplained visions of the future.

A near-death trial causes Teal’c to imagine his life as very different from the one he knows, where he is a normal person living on Earth — until he can…

SG-1 attempts to save a planet’s inhabitants from Nirrti’s genetic experimentation, but find themselves to be her next victims.

The team returns to Earth with a piece of technology that allows them to see alien creatures everywhere, and must attempt to contain the problem when it spreads beyond the…

Colonel O’Neill is charged with the murder of Senator Kinsey, and the rest of the team must uncover a conspiracy in order to clear his name.

Tensions rise between the Tok’ra and rebel Jaffa at the S.G.C.’s offworld base when they are attacked by an invisible enemy.

An alien world offers Earth a medicine with the power to cure any illness — but the hidden price may be too high to pay.

O’Neill is captured and tortured by the Goa’uld, and must rely on an old friend to survive.

Jonas’ people ask Earth for military aide in an impending war with their rival nations, but his former mentor offers another solution: a resistance movement ready for a coup.

SG-1 investigates the discovery of a woman frozen in the ice in Antarctica, who may be a link to the gate builders. A mysterious disease threatens to kill everyone at…

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

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.

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.

O’Neill becomes the unwilling receptacle for a library of alien knowledge.

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.

Teal’c is infected with deadly venom from a giant insect, and begins a terrible transformation. When he escapes the S.G.C., SG-1 must find him before Colonel Maybourne does.

SG-1 discovers an ancient artifact that takes O’Neill and the S.G.C. hostage.

The SG-1 team attempt to rescue Teal’c’s son, who has been kidnapped and brainwashed by Apophis. Teal’c learns disturbing news about his wife.

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.

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