From the back of the book: The fight to save the planet from the Aliens continues! Secret information, brought from the heart of the conspiracy by a patriot -- loyal to humanity and the ideals of freedom. Contained in these pages are secret glimpses into the secret base in the Nevada desert -- home to secret research projects and the heart of the alien presence. This is the second in a series of supplements for Hidden Invasion. Also usable with other modern day alien and conspiracy games. Compatible with 1st and 2nd Edition Hidden Invasion.