When looking for food Takuya, Tommy, Zoe and J.P. come across KaratsukiNumemon who ask for their help in exchange for food. They take the challenge and take a train up a cliff to the homes of the KaratsukiNumemon. The group meet Koji whilst at the homes and they all try to work together to free the female KaratsukiNumemon. Grumblemon, the evil Legendary Warrior of Earth appears and takes on Agunimon, Lobomon, Kumamon, Kazemon and Beetlemon. Grumblemon then slide evolves to Gigasmon his Beast Warrior form, a previously unseen evolution. Gigasmon proves to be too powerful for the group. Beetlemon attacks Gigasmon but results in the fractal code of the mountain being shown and swallowed by Gigasmon. The group (including Bokomon and Neemon) fall from the cliff and are separated into two groups.