Zee-Nine City Seven, a settlement managed entirely by droids, functioned as both a pirate repair station and a center for data exchange; it was located far into Hutt Space. Darth Vader, the Sith Lord, along with Ochi, the Sith assassin, and under the guidance of the Hutt Bokku, pursued the Droid Crush Pirates of Bestoon to this city while trying to find the carbonite-encased form of the smuggler Han Solo. When Vader and Ochi got to Zee-Nine City Seven, they discovered that the Droid Crush was working for IG-88, the assassin droid, who had been contracted by Administrator Sly Moore to kill Vader.