Based on speculation, this part of the movie's story takes place during the brief period after the events in Yorknew City conclude and before Gon and Killua enter G.I. The movie's story recounts the tragic incident of the Kurta Clan massacre and reveals the circumstances behind Hisoka joining the Phantom Troupe—unraveling the mystery surrounding the background of the former Phantom Troupe member No. 4, "Omokage." Gon, Killua, Kurapika, and Leorio join forces to confront the former Phantom Troupe member No. 4, "Omokage."