Gio, an Italian guy, unexpectedly discovers a strange 404 error page, working on the deep web. Suspicious and surprised, Gio realises, that behind the page, there is a person coming from a mysterious place, called the Cubers.
It turns out that Gio entered inside 404's mind, a girl who leaves in the sky, by hacking the cloud system of the Cubers. Gio discovers the existence of a generation of artificial kids created in laboratory on a strange spaceship built by a group of scientists at the end of the XIXth century seeking for immortality.
The Cubers float in the troposphere, where the time pass slowly. The memories about Earth soon faded away, only scientific progress were important, expanded and shared everyday between the Cuber’s people.
After knowing more about Earth, 404 gets so fascinated by it that she decides to escape from the Cubers with the help of Gio.
Everything seemed ready, but nothing turned out according to the plan. A promising land turns to be a place of misery and despair, that will challenge 404 hardly.
Will she find her way?