DN-949A, situated on the planet Netalych, functioned as the Galactic Empire's third-most important fuel depot and chemical refinement center within its designated sector. The organic inhabitants numbered below 500, while approximately 1600 droids, possessing fifth degree intelligence or greater, performed the labor. A mere six days following the Battle of Endor, the resident droids initiated a revolt, overpowering the stationed military personnel and declaring the outpost's autonomy and its entitlement to self-rule. One year subsequent to Endor, an Imperial assault squad, commanded by Yrica Quell from the 204th Imperial Fighter Wing, arrived at the outpost; this visit enabled Quell to secretly confer with the droid referred to as the Surgeon and facilitate the examination of remnants belonging to a Messenger droids used by Emperor Palpatine.