Hunter x Hunter: Season 2, Episode 56
Ikalgo infiltrates the palace's lower levels to look for Palm with no success. While returning to the surface, his cover is blown and he finds himself trapped in the undergound with an enemy. Meanwhile, Youpi pretends to be angered in order to have Knuckle falsely believe there is an opening for him to attack. Youpi's plan works, but just before he could kill his opponent, Killua paralyzes the ant with a lighting bolt and steps in to fight him.