We don't understand where they came from - from the deeps of the space, or out of a different dimension. All we know - they did not come with serenity. Enormous extraterrestrial spaceships just emerged on the Earth's orbit. They destroyed all of the significant military bases, they then began to search something in a variety of corners of the planet. They utilized battle machines and strange mutant creatures to assault us. Subsequently it turned out worse - they began to turn our people into their weapon. Earth Protect Squad is our final hope. Little military organisation was produced to face the alien danger. We've got everything to combat - highly-trained soldiers, great deal of modern firearms, and the hottest technology, like battle spiders and force areas in our arsenal. We've got armory lab to alter our weapons and have strategic advantage - you can easilly change your scope, or clot attachment, or even ammo type prior to the assignment. We will need to learn what they are searching for. We will need to understand how to battle them and protect our residence.