When informed of the Ori incursion on Kallana, Gerak traveled to Kallana in this Ha'tak along with two others. When they dropped out of hyperspace, they fired on the forcefield until asked to stop by Colonel Lionel Pendergast of the Prometheus. After SG-1 detonated the Mark IX and the field expanded, Gerak challenged them to fire on the field or face his ships in battle. The Prometheus joined the three Jaffa vessels in their attack on the field until Lt. Colonel Samantha Carter discovered that the field was being powered by their weapons fire. After the field inveloped the planet, several small objects came through the Stargate and collided with the ships. Gerak's ship and the Prometheus were damaged and the other Ha'tak's were destroyed. Gerak retreated and scanned the planet from a dista