DEADLY EXPOSURE. Earth was being invaded – and nobody knew it! Aliens were landing at key points throughout North America and taking over communications, government, and industry. The top secret security agencies – those that had figured out what was really going on – tried to stop the invasion but failed. The aliens were controlling the mind of every person they encountered – and they were multiplying far faster than they could be destroyed. It was up to Sam Cavanaugh, secret agent for the most powerful and deadly spy network in the U.S., to find a way to stop the invaders. And the only way to do it was to be invaded himself!