It's the middle of the 20th century, and Americans everywhere are terrified by the strange lights hovering above them in the night sky... and they should be. These UFOs are actually the Xilien invasion force! Revealed to have already been on Earth during the events of Here There Be Dragons: Sons of Giants, the Xiliens have been attempting to destabilize the planet with the help of kaiju from outer space! With the aliens' claws deep inside the U.S. government, will our rogue operatives manage to band together to save humanity?
