Eye of Ra
"Full Circle" follows the Ascended Daniel Jackson contacting Jack O'Neill and tells him that Anubis has located The Eye of Ra, an enormously powerful weapon that can defeat the combined forces of the Goa'uld System Lords. SG-1 then travels to Abydos to create a defensive position against the Goa'uld Army, Anubis then appears over the planet and threatens to destroy it if they don't give him The Eye of Ra.