Stargate: The Ark of Truth (2008)

While digging on Dakara, SG-1 discovers a box that they believe contains the Ark of Truth, but before they can open it, Ori soldiers arrive, led by Tomin. Daniel tricks them into opening the box, but it is revealed to be a fake. When Tomin is ordered by a Prior to kill them, he refuses, and Mitchell kills the Prior, whose powers were being blocked by the Anti-Prior device. Shocked at the death of their Prior, the Ori soldiers surrender with Tomin returning to Earth with SG-1 where he resides at the SGC for a time. Back on Earth, General Landry and Mitchell meet James Marrick, an IOA representative sent to interrogate Tomin, because the original IOA representative, Richard Woolsey, is now working for the Atlantis Expedition.

When Daniel Jackson realizes that the Ark is still in the Ori galaxy, Marrick is assigned to accompany them on board the Odyssey through the Supergate. In the Ori galaxy, a member of the anti-Ori resistance tells the team that according to legend, the Ark is on Celestis, the Ori capital. When SG-1 beams down to the planet, Marrick activates the Asgard computer core which alerts the Ori to the ship’s location. Upon being alerted by Major Kevin Marks of what is going on, Mitchell and Carter beam back to the Odyssey and discover that Marrick has used the core to build a Replicator, intending to plant it on an Ori ship and let it spread to their entire fleet. When Mitchell attempts to destroy it with an anti-Replicator Gun, the replicator escapes, and Marrick reveals that the IOA removed that weakness from the design, although conventional weapons are sufficient to destroy individual replicators.