A test of the X-301, an experimental aircraft adapted from two Goa'uld death gliders, goes awry sending O'Neill and Teal'c hurtling out of Earth's orbit. As the X-301 streaks through space at a million miles an hour, the SGC struggles to find a way to retrieve it. But after an attempt to alter the aircraft's course fails, things look grim. Daniel Jackson seeks the help of off-world allies. He learns that the Tok'ra have a ship capable of reaching O'Neill and Teal'c, but it is on a covert mission in Goa'uld-controlled territory. With time ticking down and the lives of their comrades hanging in the balance, Carter and Daniel must locate the Tok'ra ship, intercept the X-301, and pull off a daring rescue.