While visiting Chulak to gather support for a Jaffa rebellion, Teal'c is captured by the Goa'uld. The rest of SG-1, unaware of his fate, are dispatched by the Tok'ra to thwart a burgeoning alliance between Apophis and Heru-ur.

Nine years in the future, the Goa'uld have been defeated thanks to an alliance with an advanced alien race. However, Carter finds out that most of the human race has secretly been rendered sterile by Earth's new allies.