When extraterrestrial life threatens humanity, American look to their brave Air Force. What do they expect them to do? They haven't been trained to fight aliens. Selected soldiers, however, are sent to a remote base in Thule, Greenland, to be trained with the advanced technological weapons that can be used to defeat the unwelcome guests. All the while, the situation grows deadlier. Aliens have taken over the western countries of the world, and are spreading east, invading Asia and neighboring nations. Military tactics have proven unsuccessful, and pressure builds on the soldiers of the American Air Force. Can they banish these space rats back to where they came from? Travel with AF-1 as they face this huge challenge. Literally. Like, the fate of the world depends on them. HUGE challenge. Let's hope they don't fail.