The SG-1 try to stop the Replicators after the metallic bugs make their way to Earth.
SG-1 aids a planet which is descended from Earth.
The SG-1 crew becomes a test subject for a mysterious set of armbands that begin to give them superhuman abilities.
SG-1 makes contact with a wormhole signal which turns out to be from Teal'c's former love, Shan'auc, who knows the way to defeat the Goa'uld.
SG-1 becomes a victim of Goa'uld mind control.
After being zapped by an alien weapon, O'Neill and Teal'c find themselves caught up in a repeating time loop from which they must break free.
SG-1 discovers that the Russians have a Stargate and are sent to the Russian SGC, where they learn that the Stargate is open and connected to a planet covered in water.
While on a planet conducting an archaeological dig, Daniel is taken captive and brought into the wilderness by an Unas.
SG-1 helps an enslaved civilization move to a hospitable planet, only when the planet becomes marked for habitation by another civilization, the SG-1 crew tries to devise a solution.
SG-1 awakens with no memory of the past, as all find they are now workers in the mines of an ice-covered planet.
O'Neill investigates the mad ramblings of a conspiracy theorist who claims to have knowledge of the Stargate.
Things go awry during the test flight of a Goa'uld glider as Daniel and O'Neill are inadvertantly sent out of Earth's orbit.
Daniel reacquaints himself with the academic campus and colleagues of his student days after the accidental death of his professor in a lab explosion, but after reexamining the accident, he decides to investigate the real cause behind it.
Teal'c is captured by the Goa'uld while trying to gain support for a Jaffa rebellion. When the remainder of SG-1 is called upon to stop an alliance between two system lords, their mission is compromised when one leader offers up Teal'c as a gift to help close the deal.
When General Hammond says he is stepping down as head of the SGC, O'Neill investigates the real reason behind his sudden decision to depart.
It's the year 2010, and many changes have occurred both on Earth and within the SGC. SG-1 comes to realize the threat of a seemingly-benevolent alien race called the Aschen.
The SG-1 team investigates a sandstorm that transforms itself into a young boy, Shifu, the Harsesis, who has the wisdom of the Goa'uld. The Harsesis sets Daniel on a spiritual path by instilling in him his extensive knowledge and memories.
SG-1 travel to a planet in hopes of finding the cause of an SGC member's suicide and the near-death state of three others, including Daniel. They find themselves transfixed by a temple's bright light which is controlling their newfound feelings of euphoria and depression.
Carter tries to help steer a brilliant but wild SGC cadet in the right direction.
The SGC's computers are infected by a destructive alien entity.
SG-1 must help a planet it once freed from enslavement in a new battle.
The SGC loan out its Goa'uld ship to help the Tok'ra move to a different planet which enrages Tanith, a spy for Apophis.