A package thought to be a bomb is found in Broadstone art gallery on Madison Avenue. This is the factual account of the way the police work in worlds largest city, New York. 21st Precinct is just lines on the map of the city of New York. Most of the people who work and live in the nine tenths of the square mile between 5th Avenue and the East River wouldn't know if you asked them if the were in the 21st Precinct.  Whether they know it or not the security of their homes, their persons and property is the job of the men of the 21st precinct  of whom Frank Kennelly is Captain in command.