When aliens come to Earth to ask for our help, a few suspicious humans discover their horrific true intentions and prepare to resist.

Fifty spaceships, each three miles across, hover ominously above Earth’s major cities. The Visitors that emerge are humanlike in appearance and extend the hand of friendship. Our planet’s resources are…

Once again, Earth is the battleground. But now the aliens whose human guise hides their true reptilian natures are wiser. They believe the secret to their survival on Earth lies…