Digimon: The Movie (2000)

A team of kids is thrust into DigiWorld, where they join forces with formidable Digimon allies to combat the menacing Diabormon. As Diabormon triggers a catastrophic internet virus, pushing the world to the brink of calamity, a high-octane mission unfolds. The inhabitants of DigiWorld rally, engaging in a heart-pounding battle to rescue both their digital realm and the real world from impending doom.