Digital Monster X-Evolution

Digital Monster X-Evolution (also called Digimon X-Evolution) is a movie that is independent of any anime series. It also presented in the X-Pendulum, being divided into three Terminals named after the Norns and represent the three portions of time: Urd (a volcanic wasteland, the past), Verdandi (A grassland environment, the present), and Skuld (Futuristic urban environment)

There was a Digital World that existed prior to the one that appears in Digimon X-Evolution. It was cultivated and populated with Digimon by the intelligent computer Yggdrasil. Digital World grew in size and in the numbers of Digimon to where Yggdrasil could no longer manage the load, and the "Digital Hazard" occurred, an event which was setting in motion the destruction of the Digital World. Yggdrasil responded by initiating "Project Ark," a template for deleting the Digital World's excess data. The first phase of the project was to kill all Digimon except the few that Yggdrasil had chosen to be its servants. These select Digimon were relocated to a new Digital World that Yggdrasil had created. However, a small percentage of the Digimon left in the original Digital World survived Project Ark by developing an "X-Antibody." This antibody gave the Digimon immunity from the Project. The X-Antibody had the additional effect of changing the Digimon's physical attributes and making them stronger. These "X" Digimon then traveled to the new Digital World on their own. When Yggdrasil detected their presence, he sent the Royal Knights--the aforementioned Digimon servants--to destroy them. By the time frame that is the setting of Digimon X-Evolution, the X-Digimon are under frequent attack from the Royal Knights.