He served as a technicians officer and monitored the ship's systems providing her with regular updates. When Colonel Everett Young agreed to transfer control of the ship to Kiva, Calvos monitored the transaction until it was complete. When Kiva was shot, Calvos took her to the infirmary and informed Dannic of the situation. He was then sent offworld with Koz, Varro and others that didn't recognize Dannic's authority. When Dannic was shot by Ginn, Calvos was escorted to a detention room with the other alliance prisoners. (SGU: "Incursion, Part 1", "Incursion, Part 2", "Intervention")