While at summer camp, seven kids come across seven Digivices and are transported to a strange digital world. In this new world they make friends with creatures that call themselves Digimon who were born to defend their world from various evil forces.
After the DigiDestined return home, the eighth child's Digivice gets carried off by Tai's cat and sets off a signal that brings in DemiDevimon, Raremon and Izzy. Kabuterimon manages to defeat Raremon, but Izzy and Tentomon's search leads them to no results.
The DigiDestined continue their search for the eighth child. Gatomon crosses paths with Kari and wonders if she could be the eighth child.
T.K. and Patamon get into a fight on their way home, and when Patamon flies off, Matt and T.K. follow him into Shibuya. They encounter Pumpkinmon and Gotsumon, who are more interested in having fun rather than helping Myotismon. When they refuse to fight Matt and T.K., Myotismon punishes them. Angered, WereGarurumon and Angemon drive Myotismon away.
Wizardmon finds Kari's Digivice and brings Gatomon and Kari together. It is revealed that Kari is the eighth DigiDestined child and that Gatomon is her partner.
Myotismon creates a barrier of fog around Odaiba and evil Digimon roam the streets. Bakemon and Phantomon begin taking people from their homes and holding them prisoner.
Myotismon uses Gatomon to try and identify the eighth child. Kari is found by Phantomon and gives herself up so that Matt and Sora are not harmed.
