The threatened revelation of damaging ecological information results in a murder that Petrocelli must solve.

A singer hires Petrocelli to defend him when his career is jeopardized by a homicide accusation.

Although witnesses swear they saw her leave a murder victim's apartment minutes after shots were fired, Petrocelli's client insists she was at home at the time of the crime.

Petrocelli defends a penniless young crop picker who was captured fleeing a drugstore where he inadvertently left his fingerprints on a pair of scissors used to stab the owner.

A woman tells Petrocelli she has shot her first husband and is shocked when her second husband is arrested for the crime.

Petrocelli defends a once-famous western actor accused of killing a motion-picture producer.

Retained to defend a man from a murder charge, Petrocelli faces the possible loss of his license after he is accused of bribing a witness.

A rich trophy wife gets accused of murder when she tries to leave her powerful controlling husband.

Petrocelli defends a hitchhiker accused of murdering a woman who had given him a ride and an amorous invitation.

A romantic triangle comes to a violent end when Petrocelli's client, a divorcee, is found kneeling over the body of her married boss with a fireplace poker in her hand.

Petrocelli defends a woman who, after being knocked unconscious in a fight with her boyfriend, awakened to find him dead and the murder gun in her hand.

Petrocelli must prove a woman innocent of murder when a man who tried to blackmail her is found dead.

Petrocelli defends a man accused of murder after he is found cradling the body of a woman who was raped and killed.

Petrocelli's client is a mechanic whose wrench, found bearing his fingerprints, was used to murder the airline executive who fired him.

Petrocelli defends a blind woman accused of fatally shooting her boyfriend.

Everyone connected with a computer theft of government secrets is mysteriously meeting death and Petrocelli may be next.

An aging former vaudeville star is arrested for killing a night club manager in a dispute over payment.

Petrocelli defends a pharmacist accused of deliberately poisoning a customer.

Petrocelli defends a woman accused of murdering her longtime friend, a best-selling author about to publish damaging information about her past.

Petrocelli defends a man who, enraged to find his wife posing for a photographer at another man's home, has a reason to be suspected for murder.

Petrocelli defends a spoiled heiress accused of planting a grenade in her father's airplane to speed up her inheritance.

Petrocelli unravels a murder mystery rooted in blackmail.

Petrocelli's client, a cop, claims he didn't kill his wife's lover, even though he was found over the body with a service revolver.

Petrocelli's high school idol, a boxer now over the hill, is accused of beating his new manager to death.

Petrocelli and Ritter offer a lift to an elderly female hitchhiker, who they later learn has been arrested for killing her son's employer.