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 trapped on an alien planet with Maybourne, and must fight to stay alive as his companion becomes increasingly paranoid.

The team is called into battle unexpectedly when the Asgard homeworld is overrun by Replicators — which have evolved into a startling new form.

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

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 boards an abandoned Goa’uld mothership that has mysteriously arrived in Earth’s orbit, and must escape the doomed vessel when it crashes into the ocean.

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…

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…

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…

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

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

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

SG-1 escapes through the Stargate before it is shut down, and learns that Daniel’s alternate reality vision is true: Apophis is moving to attack Earth from above. The team must…

An alien artifact transports Daniel to an alternate reality, where he is not a part of the Stargate program and the Goa’uld — led by Teal’c — are invading Earth.

The SG-1 team rescues a group of advanced humans from a planet near destruction, and must find a new home for the refugees before the Pentagon gets their hands on…

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.

A mysterious affliction wipes out the entire population of a planet, plus an SG team — except for one young girl. Carter befriends her, but learns that she is being…

Daniel is taken captive by an alien with a hidden agenda, while SG-1 is made to believe he is dead.

SG-1 tracks down Catherine Langford’s fiancee, who took the first Stargate trip in 1945, and discovers an ancient meeting hall that may hold the secrets of the universe itself.

During an off-world assignment, Jack is struck down by energy from a blue crystal… which creates a duplicate of him that returns to Earth in Jack’s place.

Pressed by the government to acquire new technologies, SG-1 is led to a world inhabited by a seemingly primative race. When Apophis arrives, SG-1 ambush him with disasterous consequences.

SG-1 discovers a race of attractive people who age extremely rapidly. The situation becomes personal when O’Neill begins to suffer from the same accelerated aging, and must live out the…

Members of SG-1 become infected with an alien virus that turns them into primitive beings. Dr. Fraiser must find a cure to save the team and the alien population from…

Colonel O’Neill, leading the new SG-1, track Apophis back to the planet Chulak to rescue Sha’re and Skaara, and befriend one of Apophis’ Jaffa guards.

Major Kawalsky is possessed by a Goa’uld, and the SGC must find a way to remove it without killing him.

When powerful aliens come through Earth’s Stargate, Colonel Jack O’Neill returns to Abydos to retrieve Daniel Jackson, who has discovered that the alien transit system includes much more than the…

Sam and Dean investigate the gruesome murders of resident mediums in Lily Dale, the most “psychic” town in America. They discover that an angry spirit is killing off the psychics…