These episodes of the hit anime series continue the saga of young Gon Freecs, now a fully licensed Hunter who faces his first real-world challenge when his good friend, Killua Zoldyk, goes missing. Gon's search takes him to the Zoldyk family estate, where he faces many perils. But soon, he also must prove his new skills in the towering Heavens Arena, where he battles adversaries that include the vicious fighter Hisoka.