The planet Andelm IV had a spaceport during the Age of the Empire. Shortly after the Battle of Yavin, the introverted tinkerer Sevox and his protocol droid I-7 resided in a bunker near the spaceport. Later, the Galactic Empire sealed off the spaceport so that the local crime lord Jaum could deliver a shipment of dedlanite to Commander Kai's Imperial Star Destroyer. Zarro and her Wookiee friend Chewbacca fought with Jaum and Imperial forces at the spaceport.
During the skirmish, they managed to plant an astromech droid rigged with explosives called "Boomer" aboard Jaum's Sentinel-class landing craft. Shortly later, Zarro and Chewie were taken into Imperial custody but managed to escape after convincing Kai that Jaum was a fraud and rebel spy.