The DigiDestined are wandering through a forest full of signs (Matt calls it the Forest of Irrelevant Road Signs) when they see a strange Black Gear in the sky. They start to wonder what it is and where they are. Tai says that they have to keep moving after stopping when T.K. trips. Sora agrees and says that they all need to stay together and use teamwork to figure out where they are (despite everyone walking away as she says this). Matt sees a bunch of telephones poles and says they should follow them. At the same time Izzy sees the black gear again crashing into Mihirashi Mountain. As they are following the poles, the kids realize that they have no wires connecting them. They are then reminded of the phone booths and the trolley car. They also notice other weird things such as Mimi's compass not working. Everyone is very hot and tired when Tai spots water. They see it's in a village and head in it's direction. Meanwhile, the black gear they saw earlier embeds itself into a Meramon. When the DigiDestined get to the village, they see that it is completely inhabited by Yokomon. The Yokomon ask Biyomon all about how she Digivolved. Biyomon tells them that it's because of the bond she shares with Sora and how she needed to protect her human partner. The Yokomon invite everyone to have dinner with them and they also go to the fountain for water. Suddenly, the fountain starts to erupt lava. The lake is empty too.
The kids think that the sudden drought could have something to do with the black gear they saw hitting the mountain where the water comes from. While getting a better look through his telescope, Tai sees Meramon heading for them. He's in great pain and burning even though he's made of fire. As Meramon gets closer, everyone begins to run away and hide in a boat in the dried up lake. Biyomon stays behind to help the Yokomon and Sora goes after her. Just then Meramon attacks Biyomon but Sora saves her. Since they are still in danger, Biyomon goes back to fight! Her rookie attacks don't do anything and when the other digimon come, their attacks only make him bigger as Meramon cries out in pain. Biyomon realizes that her friends are in danger and digivolved to Birdramon. The two fight and after getting a good hit on Meramon, the black gear comes out of his back. They realize that's what was making him crazy. Then Birdramon turns back into Biyomon and hugs Sora.
The Yokomon ask Meramon why he attacked their village and he tells them he couldn't control himself and the last thing he remembers was being hit by the black gear. They are just happy that he's better and Meramon goes back to the mountain. After that, everyone eats the dinner they were promised. All the digimon love it but the kids are a little reluctant to eat the seeds they are given despite there being more than enough for seconds.