When Rollie discovers a sinister international arms smuggler named Victor Loubar has stolen his identity, he teams up with FBI agent Elena Serrano to hunt for the impostor. Together they enter the dark, sinister world of Loubar, where nothing is what it seems, and no one can be trusted, racing to stop the mysterious criminal mastermind from stealing a top secret experimental ""smart grenade"" from a military contractor.

On location in London, the last person Rollie expected to see was FBI agent Elena Serrano. This time she needs Rollie's help in spiriting an undercover agent back to New York with his deadly cargo of bio-toxin. But the undercover agent is long dead, and the man beneath the mask is Rollie's nemesis, Victor Loubar -- international weapons dealer and chameleon master of disguise. By the time his ruse is revealed, Loubar is in deep cover, somewhere in New York ready to transfer the deadly bio-weapon to the highest bidder. Now Rollie has to find Loubar in a city of millions before he can close his deal. Satellite surveillance, identity switches, and a massive FBI investigation lead Rollie to a showdown at Grand Central Station. Someone's going to walk away from the fiery finish - but whose face will he be wearing?