Count Dooku approached the Governor of the world to allow the Separatists to move the population to a secure location while they established a base there. Obi-Wan Kenobi, Anakin Skywalker, Ahsoka Tano, and Clone Captain Rex later fought a battle on Kiros, where they liberated the planet, but discovered that the entire population had been taken by slavers. After a battle at Kadavo had ended and the Zygerrian slave processing facility was destroyed, the former captives were returned to Kiros, to rebuild their society.
Kiros first appeared in the episode "Kidnapped," the eleventh episode of the Star Wars: The Clone Wars television series' fourth season.