As the building caves in on them, the kids fall into the sewers under the city. Tai and Izzy have the medicine for Kari and are searching for them. Sora, Biyomon, and Patamon find Kari, T.K. and Gatomon. Kari's fever finally breaks and she wakes up, feeling a little better than before. The group continue to search for Tai and Izzy but run into a group of WaruMonzaemon. The stange light that took over Kari before returns and helps make the Digimon stronger than ever before. The group defeats the evil Digimon and free some enslaved Numomon. While the kids follow that light, Machinedramon arrives and battles the WarMonzaemon. Still looking for Kari and the others, Tai and Izzy run into Andromon and are attacked by Machinedramon, after all of this, the two groups of kids finally meet up. Kari's "light" gives WarGreymon all the power he needs to finally defeat Machinedramon.