This OVA continues Gon Freecss and Killua Zoldyck's run through Greed Island, the deadly video-game world Gon entered chasing leads on his missing father, Ging. Under the brutal training of the veteran Hunter Biscuit Krueger, the pair sharpen their Nen to keep clearing the game's card-collecting challenges, while the player-killer Genthru and his Bombers hunt other participants to seize their cards. Concluding the Greed Island arc, it adapts the corresponding chapters of Yoshihiro Togashi's manga.