Vendetta 2175

In the year 2175, Earth has finally come to peace. However, a new threat arises: the TERRONs, the cruelest race in the universe, attacks Earth's colonies in the solar system with giant vacuum cleaners. Some people on Earth managed to hide underground, in a technologically advanced factory. Two of them volunteered to fight the TERRONs with the help of spaceships that were built here.