Ep 27. My Sister's Keeper

The kids are crossing yet another desert, but Kari gets sick and passes out. Tai gets really upset and soon Tai tells the others that Kari almost died once. When Tai and Kari were younger, Kari was sick at home and Tai was to be keeping an eye on her. Thinking of only himself, he took her outside just so he could play with his friends. Kari ended up in the hospital for a while as a result of not being kept indoors. After knowing this, the kids look for a hospital in the Digital World to take Kari or a place that has medicine to help her. Kabuterimon takes them to a deserted city where Kari can rest, but they still need to find medicine for her. Using the internet, Izzy locates a place where they can get the medicine. He soon realizes that the evil Digimon are able to find them whenever he uses his computer on a network. Soon, the bad guys are all over and Izzy tries to throw them off by using the computer again. The grab the medicine and return to where Kari and the others were...but they arrive just in time to see the building be destroyed by a missile. It turns out that the other kids got out just before the missile arrived. The others are chased into another building which crumbles in on top of them.