|Humanity has colonized most planets in our galaxy, the Milky Way, and they now look towards expanding their reach by using an experimental travel technology called "Hyperzone Drive". However, a race of aliens who have already mastered that technology are currently invading planets at a quick pace, closing in on our solar system. The invaders attack humanity's colony on Pluto and conquer it with little resistance, since human civilization doesn't have the technology to defend itself.|
The human organization responsible for the space program, the "United Space Force", decides to use the yet-untested "Hyperzone Drive" in order to send ships that will directly attack the armies of the invading aliens. However, the new technology proves hard to control, and only one of the ships manages to survive the trip: Falsion.