 On a planet where thousands were embracing the faith of Origin, a single wave of energy -destroying only living tissue- kills them all and the Prior. General Landry hears from Master Bra tac, who is out of favor with the new leadership, and then its chief Se tak, that it was ordered by the Jaffa council which intends to stop the Ori at all cost, using the ancient weapon from Dakara which successfully eliminated the Replicators. Teal c and Mitchell on the empty Ori ship are captured by certain members of Bo rel s armed Free Jaffa force; Daniel and Vala too, but their Jaffa captors fall prey in turn to Vala s evil Ori-daughter Adria, the sole survivor from the force wave. Against Landry s advice Se tak orders to use the weapon at full power, which should destroy the planet and all ships around it, from which the Odyssey can evacuate the SG-1 members using the rings just in time, but it has no effect on the Ori ship, which in turn fires on the weapon on Dakara...