A rash of unusual robberies leads to an eccentric gun collector. A man who is trying to recover his television set robs the police vault. Wojo fears that a depressed Luger is planning to commit suicide.
Dietrich is arrested for participating in an anti-nuclear rally. A lottery winner dispenses of his prize money by throwing it out a window. Barney discovers he can't afford his apartment now that it is being converted into a condominium.
The department restructures precincts into specialty squads. Luger gets the 12th assigned as a homicide squad. A man murders his barber. A woman hires a hit man to kill her husband and then changes her mind.
Barney's frustration boils over when the new homicide-only edict results in the death of an old friend. Dietrich tracks down the hit man's intended target. Harris woos the precinct's crime photographer.
Wojo takes a personal interest in a fellow vet whose crime spree may be related to Agent Orange exposure during the Vietnam War. A domestic dispute occurs at the Brauer household when their apartment building becomes "clothing optional."
The precinct is besieged by a large group of prostitutes. Dorsey develops a protective stance with a young one. Harris receives stock tips from another. Dietrich is tempted by all of them as he experiments with celibacy.