Bribery, blackmail and murder develop from a citizens' fight against a proposed construction project.
Kevin is taking piano lessons from the inscrutable Mrs. Carples.
As the holiday's approach, Kelly and Sipowicz get a early gift in the form of a hot tip while investigating the kidnapping of a young girl. Sipowicz secretly comes to Fancy's aid when the lieutenant is accused of mismanaging the department.
A woman's body is discovered at a salvage yard. A man is killed by a most unusual object. Gina returns to the squad.
Martin Landau portrays a time-traveller desperately trying to stop the birth of an inventor whose bacterium turns humans into mutants.