Carter and Teal’c go in search of the Asgard to try and save Colonel O’Neill, but discover that the Asgard’s enemy has returned with a vengeance. The System Lords seek…

Daniel Jackson is exposed to a lethal dose of radiation while visiting an alien civilization that is building a weapon of mass destruction.

While the Goa’uld threaten to attack Earth, SG-1 and the Asgard make a last, desperate stand against the Replicators, which have captured Major Carter and invaded the last outpost of…

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.

General O’Neill tries to settle into his new job, but faces never-ending crises – including the capture of SG-1 by the Goa’uld.

After an injury, Teal’c must put aside his self-doubt when SG-1 launches a mission to rescue his son and his mentor from a Jaffa death camp.

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

Earth finds itself threatened by something even larger than the Goa’uld when the team learns that an asteroid is on a collision course with the planet.

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

When SG-1 finds a crashed alien space ship, Daniel’s mind is taken over by its disembodied passengers.

The SGC is invaded by an alien life force that takes up residence in the base computer system — and in Major Carter.

When Earth’s attempts to exploit a newly-discovered naquadah mine are thwarted by a tribe of indigenous Unas, SG-1 must turn to an old friend for help.

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

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….

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.

Disaster strikes the Stargate, trapping Teal’c in transit. SG-1 must turn to Russia — and to their enemies — for help.

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.

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.

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

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

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.

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

The Tollan offer Earth advanced weapons technology, prompting a secret investigation on Tollana — one that leads to a startling discovery.

SG-1 encounters a potential new, technologically advanced ally in the war against the Goa’uld — though they do not know the Aschen’s dark secret.

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

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.

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.

O’Neill and Lieutenant Tyler are ambushed by Goa’uld forces and trapped behind enemy lines — while the rest of their team discover they don’t know who Tyler is.

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 risk their lives to keep the Replicator bugs from gaining a foothold on Earth, while Carter helps the Asgard fend off a Replicator invasion.

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

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, 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.

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

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

With SG-1 trapped on Klorel’s ship, it seems that Earth is doomed as the Pyramid Ships prepare to destroy Earth.