Do you know who your enemies are? Your neighbor? Your boss? Your butcher? Your wife? Only the Voltarians know for sure. They've infiltrated our world - and they're prepping it for a power play unlike any you've ever seen. Even Jettero Heller, a leading Voltarian, doesn't know whom he can trust. Beset by double- crossing body doubles and backstabbing identity shifters, he discovers that the most dangerous battle of all is about to begin ...against a most surprising enemy. In this web of espionage, intrigue and betrayal, even Voltarian Royal Combat Engineer Jettero Heller doesn't know who he can trust. He's hard at work creating a gasoline substitute to fuel his '68 Caddy in a Long Island automobile race-a development that could have dramatic consequences for the entire human race. As such, he poses a grave threat to the powers that be. Now, his treacherous fellow Voltarian, Soltan Gris, has formed a secret alliance with a cabal that includes a dirty DC politician, a ruthless billionaire industrialist and a mysterious media madman. Their mission: terminate Jettero Heller. Beset by double-crossing body doubles and backstabbing identity shifters, Heller discovers that the most dangerous battle of all is about to begin...against THE ENEMY WITHIN.