07 was among the BX-series droid commandos from the Separatist faction who took part in the Defense of Rishi Station.
During 22 BBY, 07, together with fellow Separatist BX-series droid commandos, received orders to infiltrate Rishi Station of the Galactic Republic located on the Rishi Moon. Their objective was to activate the "all-clear" signal, which would pave the way for a surprise offensive targeting Kamino, a crucial world for the Republic. 07 and his droid comrades utilized Droch-class boarding ships, taking advantage of a meteor shower to approach and land near the station. After entering secretly and eliminating several clone troopers, the droids successfully rigged the "all-clear" signal, although some clones managed to escape.
Clone Captain CT-7567, known as "Rex," and Clone Commander CC-2224, nicknamed "Cody," arrived to perform a routine inspection. A droid disguised as a clone attempted to deter the inspection, but Hevy alerted the clone officers using a droid attack flare. Rex promptly shot and destroyed the disguised commando droid. Subsequently, they were ambushed and forced off the platform, leading the Separatist droids to believe they had been eliminated. Afterward, 07, along with two other droids, 08 and 09, guarded the base entrance. Rex then deceived 07 into opening the doors for Unit 26, a droid that had been previously destroyed. As the doors opened, 07 and the other droids were destroyed, enabling the clones to reclaim the base. However, a fleet of Separatist warships soon arrived and deployed reinforcements to recapture the station.
The initial appearance of 07 was in "Rookies," an episode from 2008 of the first season of the television show Star Wars: The Clone Wars. 07's identification was provided in the episode guide that was released at the time.