Based on

Movies like Digimon Frontier: Revival of Ancient Digimon (2002)

Takuya Kanbara, Koji Minamoto, J.P. Shibayama, Zoe Orimoto, Tommy Himi, Bokomon, Neemon ride a Trailmon (Ball) through a desert when they get caught in a battle between human and beast Digimon. It is interrupted by the Lost Island, an island trapped between dimensions, crashing down between them and scooping all involved up.