3593... Galactic warfare is in full swing. Seven years have passed since people again set foot on Earth - their ancient ancestral home. All this time, humanity inexorably squeezed Others, reviving the former power of its race. And strangers, split into two warring groups, fought not only with people, but also among themselves. This confrontation was only in the hands of people - their enemies themselves exsanguinated each other, thereby facilitating the task of liberating human planets that were still under the rule of Others. But then the unexpected happened: one of the races, Alva, mastered the weapon of such destructive power that the existence of the entire galaxy was under threat...