The SGC learns that the Caledonian’s arch enemy, the Rand government, has been visited by a Prior, who has offered them great weapons to defeat the non-believing Caledonians. The main weapon is a satellite platform which can destroy all of the Caledonians. The Prior is slowly giving the Rand government instructions on how to construct the satellite platform. There may still be time to destroy the weapon, as SG-1 sees that such a weapon could eventually be used against other non-believing worlds, too.
SG-1 decides to take the Prometheus with them in an attempt to destroy the weapon, before its completion. Daniel travels through the gate to try to convince the planets leaders the evil of the Ori. However, Daniel is thrown jail as an enemy of the State, and the Prometheus receives a deadly surprise, once it arrives.