Sync served as a clone trooper within the Grand Army of the Galactic Republic. As the Clone Wars raged, Sync abandoned his post with the Republic; however, he was brought back to Kamino and assigned to a squad composed of troopers who had also deserted, under the command of Heater. This unit was dispatched to carry out an assault against a Confederacy of Independent Systems weapons depot, and Sync held the belief that they could atone for their actions and be reinstated. Sync's defining characteristic was his positive outlook.