The warriors enter the unexplored Dark Continent, where they fight Arbormon for the last time. Meanwhile, more is revealed about the evil Legendary Warriors.
At their hidden lair, Arbormon, Mercurymon, and Ranamon meet with Cherubimon to give him the Fractal Code that they've collected. Cherubimon notices that Mercurymon has not handed over Seraphimon's Fractal Code, but decides to let him keep it for the time being. Cherubimon makes it clear that he is aware of the humans in the Digital World and Arbormon says he will take care of them. Shortly later, Duskmon and Mercurymon get into a conflict, with Duskmon questioning Mercurymon's loyalty and Mercurymon calling Duskmon a coward for having never set foot on the battlefield. Duskmon walks away, but he begins to contemplate fighting the children, as they've become an annoyance.
The DigiDestined continue their journey toward the Rose Morning Star by Trailmon (Franken). They notice, however, that the clouds near the Rose Morning Star are very dark despite it being midday, and Franken suddenly stops and dumps them out, refusing to carry them any further. Bokomon reveals that they are at the border of the Continent of Darkness, a place where many Digimon have traveled, but none have returned to tell its secrets. Takuya, however, is optimistic and the other DigiDestined support him in the decision to risk traveling across the continent, much to Bokomon's dismay, so they head through the Dark Gate to the Forest of the Continent of Darkness. Everyone soon finds the Continent of Darkness disturbing, however, and some consider turning back until they find glowing moss to light their way. They soon find their voices echoed by something and when Koji throws his moss at the source, they discover a group of Pipismon. Bokomon is shocked to find that such peaceful and gentle creatures live in the Dark Continent, and Takuya suggests writing down what he learns about the continent and after some encouragement, Bokomon decides not only to write about the Continent of Darkness, but also the Legendary Warriors. Before they can continue, however, Arbormon appears and after destroying the Pipismon, slide evolves into Petaldramon. The children beast spirit evolve to fight Petaldramon, but he eats a tree and becomes huge. They seem to be outmatched until they attack together, culminating in Zoe and Takuya combining their attacks and knock the Fractal Code out of him; Koji slide evolves to Lobomon and steals the Beast Spirit of Wood. Duskmon then appears and destroys Arbormon, stating that he is useless without his beast spirit.
(Numbers indicate order of appearance. Bolded characters are fought by the protagonists, and italicized characters appear only as a voice or silhouette.)