The year is 2065 and Earth is under siege. A meteor has crashed onto the planet, unleashing millions of alien creatures, Phantoms, which roam the Earth. Decimating field and city alike, these predators are threatening to extinguish all life on the planet. General Hein intends to unleash a massive space cannon Zeus that will annihilate the aliens, even if it means destroying the Earth in the process.. He is suspicious of Aki's intentions and sends Gray along to keep an eye on her.
True to his character, you better watch your back coz General Hein has a hidden agenda.