After a showdown with the Yemeni terrorist known as the Panther, John Corey returns to New York City to take a job with the Diplomatic Surveillance Group. John is expecting this to be a quiet job but after being assigned to follow Russian diplomats he discovers a whole new threat.
John is covering a party for Russian oligarchs when Vasily Petrov, a Russian diplomat is taken from the party. John finds out there is a plan for the Russians to plant a dirty bomb on a Saudi Prince's yacht and have it blow up in New York harbor.
The story is the 6th in the John Corey series and is typical fast paced writing by Nelson DeMille.