Pre Vizsla publicly served Duchess Satine as the governor of Mandalore's moon Concordia, but was really the leader of the Death Watch, a secret society of Mandalorian commandos who sought to overthrow Satine's government and reclaim the Mandalorians' honor as warriors. Vizsla and Count Dooku plotted to assassinate Satine, which would lead to a Republic occupation of Mandalore. Vizsla's Death Watch would then liberate the planet, joining the Separatist cause. Things did not go according to plan, and Vizsla and Dooku bitterly parted ways. Death Watch became a group of nomadic warriors, with the formerly manicured and orderly Vizsla becoming unkempt and battle-worn as their leader.
A beautiful, snow-draped world in the Outer Rim Territories, Carlac avoided much of the violence of the Clone Wars. But when the nomadic Death Watch warriors turned it into a camp, the planet and its peaceful Ming Po people faced death and destruction. The cruel Death Watch warriors erected temporary tents next to a Ming Po town, and raided the defenseless village for servants. Chieftain Pieter, leader of the Ming Po, demanded that Death Watch leave Carlac at once, unleashing the cruel temper of Pre Vizsla.
When the nomadic Death Watch army arrived on the peaceful planet of Carlac, they intruded in the towns of the native Ming Po. Under Pre Vizsla's command, the Death Watch kidnapped many defenseless natives, forcing them to serve their needs as they set up a temporary base of operations. Not even Tryla, the grand-daughter of Chieftain Peiter was spared. Tryla befriended Ahsoka Tano, a Jedi hidden in their midst, but did not live long enough to see her town liberated.