NYPD detectives Pete Nazareth and Tara Gimble are on the trail of an assassin who's hunting Russian dissidents in New York City. Are the killer's orders coming from Moscow, or is this the work of a homegrown madman? The detectives get a helping hand from a well-placed spy in Washington, but in a frustrating game with global implications they have trouble separating the good guys from the bad. International intrigue then takes a deadly turn for the worse when terrorists target Central Park with a nuclear weapon. The lives of millions hang in the balance as Nazareth and Gimble race the clock alongside an American black-ops team. This is the fourth novel in the popular crime series.