A military-science expedition team discovering how to use the ancient device, named the Stargate, to explore the galaxy. However, they encountered a...

O'Neill and the team return to Cimmeria, the planet where they destroyed Thor's Hammer to help Teal'c escape. They find that the Goa'uld have invaded...

SG-1 in their fight against the Goa'uld Empire's System Lords, the main being Sokar until "The Devil You Know" and then Apophis, after he regained...

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...

SG-1 trains a team of raw cadets, and Colonel O'Neill is forced to take them into a real-life battle situation when he learns of a possible alien...

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...

SG-1 discovers Daniel Jackson alive and living on an alien world, with no memory of who he is. The team hatches a plan to lure Anubis into a trap and...

With Jack still in stasis in the Ancient outpost buried in Antarctica, SG-1 tries to contact the Asgard. Meanwhile their new leader, Dr. Elizabeth...

As one team member transitions into a new role, another is met with hesitation in season nine. Having learned of the Ori's plan to control the mortal...

As the team embarks upon its tenth year, Vala, a former Goa'uld host turned freedom-fighter, joins SG-1 in their battle to defend the galaxy from the...

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...

His mind altered by Apophis, Teal'c must undergo a ritual that takes him to the edge of death itself, in order for him to rediscover who he is.

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

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...

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

Cassandra mysteriously falls ill, sending SG-1 back to her home planet -- where they uncover a dark Goa'uld secret.

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

SG-1 teams with a Russian unit when one of their Stargate teams goes missing in a mysterious alien ziggurat.

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.

When Carter goes missing, O'Neill teams up with Col. Maybourne again to free her.

An alien ship approaches Earth, sending SG-1 to an old friend for some answers -- where they discover that Martin Lloyd has created a TV show about...

SG-1 trains a team of raw cadets, and Colonel O'Neill is forced to take them into a real-life battle situation when he learns of a possible alien...

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

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...

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...

A charismatic Jaffa leader seeks to forge an alliance between Earth and his rebel followers, winning the allegiance of Teal'c and Bra'tac.

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 turn to a pair of convicted criminals to save a world from annihilation by the Goa'uld.

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

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