Trunkal has the three most coveted moons in the galaxy, natural sources of unique energy power, they generate all the energy for the planet, and there is also all the military defense that has always prevented any attempt at alien invasion, in all there are 72 stations scattered across the moons, but the unlikely happened, the Kirgons, an alien race that consumed all the resources of their planet discovered that Trunkul can become the perfect environment for a new home. Then, one day, 72 machines known as sentinels, invaded Trunkul's defense system and took over the lunar facilities ending all defense of the planet, If that wasn't enough, they also drained the moon's energy to charge a ray that would be fired and annihilate all life on the planet. But the resistance has figured out how to disable the sentinels, and only the best pilot in the galaxy, Michael Gabes aboard the X-1 can accomplish the mission before the beam charges and fires....