On the Wandering Island, a war rages between Human-type Digimon and Beast-type Digimon. Takuya and his friends befriend Bearmon and Kotemon, who are friends and younger siblings of Grizzlymon and Dinohyumon. Takuya joins Dinohyumon's side, while Koji sides with Grizzlymon. The group discovers a legend about Ornismon, a bird that can end the war. With the help of Zoe, JP, and Tommy, they work to reassemble Ornismon's picture. But is the legend true, and what is the connection between D'Arcmon, HippoGryphomon, and the evil Murmuxmon?
Digimon Frontier: Island of the Lost Digimon
As the Wandering Island teeters on the brink of chaos, the Legendary Warriors must intervene to stop the malevolent Murmuxmon from manipulating the Human-type Digimon and Beast-type Digimon into all-out war, and instead teach them to coexist in harmony.