Colonel O'Neill and Captain Carter are separated from Jackson and Teal'c during a Stargate journey, and are trapped on a desolate ice world with no way of escape.

Senator Kinsey arrives at the SGC to investigate the program and determine whether the great drain on the U.S. budget is worthwhile, prompting the team to recall missions from the past year.

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

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

SG-1 finds a planet inhabited by Native American Indians, protected by spirits who are actually advanced alien shapeshifters.

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.

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

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.

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

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

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

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

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.

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

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.

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

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

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.

SG-1 must adjust to a new commanding officer when General Hammond steps down -- but O'Neill discovers foul play behind the general's resignation.

SG-1 finds themselves stranded in a crippled ship in a distant galaxy -- with Apophis threatening to destroy them. Teal'c is brainwashed and made loyal to Apophis once again.

An alien being is smitten with Carter and follows her back to Earth. It assumes a human form and pursues a relationship with her.

SG-1 discovers that their recent trip through the Stargate may have inadvertently doomed an entire civilization.

SG-1 discovers a civilization that uses Unas as slave labor, and attempt to liberate Daniel's friend, Chaka.

The Tok'ra war with the Goa'uld escalates, and the rebel faction sends Daniel Jackson to a secret meeting between the System Lords.

Dr. Jackson's undercover mission to a Goa'uld summit is complicated by the arrival of a surprise guest. The rest of the team face a full-scale invasion of the Tok'ra homeworld.

SG-1 encounters a young woman with the ability to control Replicators, and who may hold the key to the salvation of the Asgard.

SG-1 must come to the rescue of their once-powerful allies when the Goa'uld attack a secret Asgard laboratory.

Tragedy reunites Teal'c with his son, who blames him for the death of his mother. 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 from total destruction at the hands of the Goa'uld, who have turned the Stargate into a doomsday bomb. Rya'c joins his father on a mission to destroy the Goa'uld weapon.

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 the research base.

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

When SG-1 is captured by the Goa'uld, a pair of scientists mount a rescue operation ... whether they're wanted or not.

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 no longer distinguish reality.

SG-1 is called to defend the people of Abydos from the Goa'uld once again when they learn that Anubis, in search of a powerful device, is about to attack.

While searching for the Lost City of the Ancients on a distant planet, SG-1 is stunned to find Daniel Jackson alive and in human form but stripped of his memory. O'Neill convinces Daniel to return with them to the SGC, where he is reinstated for a daring mission to destroy Anubis' powerful new super-weapon!

The team returns to Jonas' homeworld when they learn that the Goa'uld are after its naquadria. When Jonas is captured by Anubis, Daniel is his only hope.

The team gates to a climate-controlled environment amidst a toxic wasteland, whose people are all linked to a central computer.

An S.G.C. scientist creates a computer virus to be used to disable enemy Stargates -- but succeeds in shutting down the entire gate network.

When the Kelownans discover that a massive underground vein of naquadah is being converted into naquadria, Jonas Quinn seeks help from Earth in avoiding the total destruction of his planet.

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 diplomat.

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.

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

A businessman threatens to expose the secrets of alien life to the world, forcing Stargate Command to bring him into the loop.

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.

SG-1 discovers the village of Camelot on an alien world, and must face Merlin's security system when they go in search of an Ancient weapon. Elsewhere, Earth and its allies assemble a fleet when a working Ori Supergate is discovered.

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