 Four armed men hijack a New York City subway train and demand 1 million dollars - which must be delivered in 1 hour - for the train and the lives of the passengers held hostage. Lt. Zachary Garber of the New York City Transit Police must contend with City Hall red tape, the unrelenting demands of the hijackers, and the ever-ticking clock in his efforts to save the passengers and bring the hijackers to justice.