This story is a sequel to Digimon Codex
When the Codex Commanders detect an unusual surge in the human cyber network, they discover the cause to be a never before seen Digimon.
This Digimon quickly starts causing problems and soon, the players in Codex have been cut off from the real world whilst those not online, are unable to log in. With no way to send Codex players into the net, the Commanders have to rely on those that were offline.
Luckily, this includes a select group of heroes that are happy to help save cyberspace. They must act quickly, before the internet and the connection it has to the Digital World is destroyed.