Tracker functioned as a clone trooper within the Grand Army of the Republic throughout the Clone Wars conflict. Alongside Threepwood and Boil, Tracker went with the Jedi Knights Obi-Wan Kenobi and Anakin Skywalker on a quest to locate the escaped Sith Lords Count Dooku and Quinlan Vos, who had broken free from Republic detention and experienced a crash landing of their ship, known as the Banshee, upon the planet Christophsis. Upon discovering blood at the wreckage location, Tracker's finding led the Jedi-Republic group to conclude that the escapees had lived through the crash but sustained injuries. Soon after, Republic troops initiated an offensive on the Separatist outpost situated on Christophsis, which triggered the Second battle of Christophsis.