The Battle Olympia tournament at Heaven's Arena is about to begin! Gon, Killua, Kurapika, and Leorio plan on watching the matches with the other Hunters and VIPs in attendance. As they wait, a raid by The Shadow ends the festivities. Skilled fighters fall one by one to their terrifying ability called On, a dark power derived from malice. When their leader Jed captures Netero and declares death to … all Hunters in the name of vengeance, Gon and Killua rush to defeat him!