The SGC is brought back into action when the Stargate is revealed to be part of an interplanetary network connecting countless planets.SG teams are created to help defend Earth against the Goa'uld, who have interstellar pyramid warships and vast armies of Jaffa (hereditary slaves and human incubators to the Goa'uld) at their disposal.The Ori, a faction of the same race as the Ancients who instead use their powers to subjugate other species by religious indoctrination, assume the role of the main antagonists in seasons Season 9 and Season 10.
Near the end of Season 8 ("Threads"), it is revealed that the benevolent Ascended being Oma Desala (Mel Harris) is responsible for Anubis's original ascension.
With 214 episodes over ten seasons, Stargate SG-1 had surpassed The X-Files as the longest-running North American science fiction television series, until it was surpassed by the series Smallville in 2011.
The story of Stargate SG-1 begins about a year after the events of the feature film, when the United States government learns that an ancient alien device called the Stargate can access a network of such devices on a multitude of planets.
In the Season 7 finale ("Lost City"), SG-1 discovers a powerful weapon in an Ancient outpost in Antarctica that annihilates Anubis's entire fleet and also sets the stage for the spin-off series Stargate Atlantis.
Ba'al subsumes much of Anubis's power in Season 8, while Anubis, who survived the destruction of his fleet in a disembodied form, quietly begins to re-assert his influence.