The criminal syndicate known as the Mandragonian Mob was considered by Hondo Ohnaka to be the most nefarious group across the galaxy. In the time of the Imperial Era, the Mandragonian Mob managed to obtain a specimen of the lethal thornsuckle plant. They then contracted Kolac Pru, a Kaminoan scientist, to clone the plant. Their goal was to release it into the atmospheres of various planets, thereby eliminating all life on those worlds. Mahjo Reeloo, who once worked as Pru's assistant, learned about this arrangement. Consequently, she compensated Han Solo and [Chewbacca] (/article/chewbacca) to transport her to the Undervaults located on Gwongdeen with the intention of eradicating the plant.