Nunb is introduced as a member of the Alliance Fleet, selected to fly as co-pilot to General Lando Calrissian (Billy Dee Williams) aboard the "Millennium Falcon" during the Battle of Endor, where they lead the assault to destroy the second Death Star. Before the battle, when the Alliance Fleet gathers near Sullust, Nunb expresses concern about the plan of attack and whether General Han Solo (Harrison Ford), Princess Leia Organa (Carrie Fisher), and their team would be able to successfully destroy the Death Star's shield generator on the moon of Endor before the fleet arrived. Calrissian assures him that Solo would have the shield down on schedule.