Daro was a terrestrial planet located in the Outer Rim Territories. It was covered primarily in forests that enveloped its mountainous terrain, and the available galactic information on Daro implied that the planet was uninhabited, housing no settlements or installations. Daro was therefore perfect for housing secrets, and in 19 BBY, the Galactic Empire occupied the planet and established a top-secret military base inside a mountain as part of Project War-Mantle, aiming to replace its clone trooper army with conscripted soldiers. The facility was populated by a team of fifty clone commandos who trained the Empire's next generation of Imperial troopers, the TK stormtrooper.

Early into training his recruits, the clone commando Gregor attempted to leave the base and desert the Empire. While he was caught and imprisoned, he planted a distress beacon outside the facility, and its signal reached the former Clone Captain Rex. Unable to retrieve Gregor himself, Rex instead sent the rogue commandos of Clone Force 99 to Daro. When the squad arrived, they discovered and entered the Empire's facility, freeing Gregor from prison. The clones were detected by Imperial forces, with squads of stormtroopers and commandos trying to stop them. The team eventually departed Daro with the exception of their leader, Hunter, who was captured by the Empire. (Read more…)