Japanese Release ::. March, 4th 2000
American Release ::. October, 6th 2000
Length ::. 40 minutes

Summary ::.
"Our War Game" takes place 6 months after the children defeated Apocalymon and left the Digital World, leaving their Digimon behind. It's now Spring Break, and all the children are away, except for Tai, Kari, Izzy and Sora. Mimi is in Hawaii, Joe is studying for entrance exams into Jr. High and Matt and T.K. are visiting their grandmother in the country.

Izzy sees a glowing DigiEgg, which suddenly hatches on his computer screen. He realizes its potential danger, so he tells Tai. He shows Tai the newly hatched Digimon on his computer, which Digivolves once more. Tai decides to call Sora to warn her, but she's still mad at him over a fight they had earlier, so he gets Izzy to try, but she won't talk to him either. Just when it looks like there's nothing they can do, Izzy gets an e-mail from Gennai, who tells him he will transfer Agumon and Tentomon into their computer to fight the Digimon. But unfortunately the Digimon digivolves again into an even stronger Digimon, and Agumon and Tentomon can't defeat it. As the battle progresses, Izzy receives e-mail from children all over the world, who are encouraging them to fight. Since the Digimon (Diablomon) is made up of all the corrupt data on the internet, he begins eating data, which causes trouble world-wide. When Tai finally gets a hold of Matt and T.K., they find it's quite hard to get access to a computer in the small village they are in, but after what seems to be an eternity, they find one. Gennai then sends Patamon and Gabumon into the computers to help in the battle. Agumon and Gabumon eventually warp digivolve into WarGreymon and MetalGarurumon, but it's still no use, Diablomon is too strong for them. It is then that the evil Digimon starts a countdown. Izzy receives another e-mail from a boy who tells them that when the timer reaches zero, all of America's nuclear missiles will be fired all over the world, causing a disaster. Tai and Matt both show strong emotion as they watch their Digimon get beaten. Their bind with their Digimon becomes so strong that they are miraculously absorbed by their computer screens and find a way to go into the internet to revive WarGreymon and MetalGarurumon. The two Digimon fuse together to form Omegamon, but even at this new stage, they still cannot beat the evil Digimon, but Izzy gets an idea. He thinks that if they can take all the encouraging e-mail they have received from children watching all over the world, they could send it to the evil Digimon, overloading it with data and slowing it down. Izzy's plan works with only a second to spare as Omegamon destroys him, stopping the countdown as a result.