Cyrus Lupo returns to New York after four years abroad to deal with his own terror. Lupo and Green investigate two suicides committed the same way. The detectives are suspicious of a parolee known as "Dr. Death".

Lupo and Green's first offical case together is a kidnapping that happened during a citywide blackout; a housekeeper is slain and a mother and daughter are kidnapped. The evidence that links all the kidnappers is the father and husband of the kidnap victims. When they search the kidnappers' hideout, they find preparations which implies that the kidnappers knew that the blackout was coming. Cutter must convince the man to testify after he has lied about a search warrant to save the man's daughter, or else the kidnappers will all go free. Issues of a warrantless search arise. Courtroom scenes revolve around questions of Enron-like manipulation of energy.