 Anubis  weapon continues to threaten Earth. Various plans are tried until Jonas Quinn suggests something simple that just might work. Meanwhile, Master Bra tac has discovered the planet from which Anubis is launching the attack. He, Teal c and Rya c journey there to put a stop to it. The Earth team struggles against mounting odds to carry out Quinn s plan as the three Jaffa discover destroying Anubis  weapon might be more difficult than they thought - it is a machine of the Ancients. And Anubis left it well guarded...