In around 18 BBY, Royce Hemlock accessed the room after speaking with Clone Commander Scorch regarding the capture of genetically defective clone Omega, and observed the clone assassin held within one of the pods. Later, during the skirmish on Wayland, Hemlock placed the captured members of Clone Force 99 in the torture pods of the laboratory and began a conditioning procedure designed to turn them into clone assassins themselves. However, Omega, Echo and a number of clone troopers freed from Tantiss Base's prison infiltrated the room and began attacking the Imperials, causing Hemlock to release all the assassins of the Clone X division (Sniper CloneX3, X4, and X5) who killed most of the invading clones, while Hemlock released the toxin and suppressed the remaining ones. However, Echo was able to resist the gas by wearing a TK stormtrooper helmet and climbed to the raised lab to help Omega and the captured Force 99. Ultimately, Omega was able to release Wrecker from his binders and he in turn freed the rest of the Force, forcing Hemlock to escape the facility with Scorch and Omega.