Caution! Do Not Enter! The other side of the door might be hazardous to your health!
Starting in NYC, Declan travels through a wild linkage of disguised matter transporters to rescue a beautiful woman from aliens. Together, Dec and Liz, helped by a stray tomcat named Jefferson, try to puzzle out and disrupt the invasion plans of the hidden invaders. The aliens have enlisted the aid of members of the government and pose a deadly threat to humanity. To forestall them, the matter transporter network must be destroyed before all is lost.
Desperately fighting their way across the solar system with captured weapons, Dec and Liz discover that the aliens' power is based on a horrifying symbiosis that is the foundation of the alien's strength, but which also creates an exploitable vulnerability. As a result of being captured by the alien leader, both Declan, and Elizabeth gain unique mental skills that may help save mankind from destruction.
Unfortunately, the invasion plot is multi-pronged, and the aliens have set up a devastating final attack that can destroy human society, forcing the survivors into a survival lifestyle.