Mark takes a job as a paralegal, leaving the judge with an auto repossession and repair business.
Mark learns his teenage idol, a New Jersey disc jockey, is involved in drugs, murder and payola.
An invasion of foreign agents and greedy scamps makes Hardcastle consider Mark's report of gold-bearing leprechauns.
Burglars take hostages and wound one of the players at Hardcastle's poker game.
Mark and Milt find graves in the cellar of an Irish pub that Mark's father (Steve Lawrence) won in a poker game.
Hardcastle rounds up his old basketball team for a rescue mission when he learns of a former college buddy's troubles.
Mark tries reconciling Milt with his brother (Kenneth Mars), until the judge learns the reason for the visit.
Mark's ex-girlfriend, who was responsible for his arrest, forges his name on a condominium contract.
Mayoral candidate Hardcastle and Mark discover a councilman's death is linked to an illegal toxic-waste dump.
While he takes over for a dead divorce attorney, Milt's new housekeeper (Rosemary Clooney) foresees McCormick's death.
The judge's guilty verdict in an assault case is overturned and a prisoner (Cotter Smith) is released.
At a judges' convention, McCormick is mistaken for a hit man, and Milt allies with a mobster to nab the killer.
Pressure from two governments forces Mark into betrothal with a Middle East princess (Lycia Naff); guest Michael Ansara.
Beauty-pageant judges McCormick and Hardcastle uncover an alien-smuggling ring while trying to help a lovesick entrant.
The judge and Mark investigate a woman wrestler's murder and learn the wrestling clubs conceal white slavery.
TV-game-winner Mark thinks nothing can break his lucky streak, but a backstage murder changes his mind.
Hardcastle, certain he has only six months to live, sails off into the clutches of hijackers.
Mark plans an escape after a rural sheriff frames Hardcastle for rape; guests Matt Clark, Randall "Tex" Cobb.
McCormick races to rescue the judge when he discovers a murder may occur on a train's 50th-anniversary run.
McCormick's sorrow turns to shock when his old Vietnam buddy shows up to rob his own coffin.
Mark investigates the near-fatal crash of a champion drag racer who once jilted him.
The judge and McCormick survive a plane crash in the wilderness, then encounter savage mountain men.
The judge and McCormick find two tots on the doorstep with a note asking Hardcastle to take care of them.
A murderer's dying confession haunts Milt because a baseball player was convicted of the crime; guest Ron Cey.
Mark poses as a policeman to help Hardcastle bring to justice a group of rogue officers murdering criminals.
The beach below Gull's Way is the site of a hunt for lost gold intended for Nazi sympathizers during World War II.
Mark and the son of Milt's slain police friend unite when the judge is shot during a murder trial.
A larcenous duo (Wings Hauser, Karlene Crockett) separates McCormick from his $20,000 prize for a stock-car race.
The woman (Anne Lloyd Francis) Hardcastle nearly married 40 years ago is now widowed and charged with murder.
The judge's aunts (Mary Martin, Mildred Natwick) probe a mystery writer's curious death.
McCormick poses as a comedian to investigate the deaths of several comics.
Milton joins an exclusive health farm to investigate a friend's death.
A crime-watch group in Hardcastle's neighborhood encounters international espionage.
An ex-convict (Larry Gatlin) must evade record executives who want to kill him for his song rights.
Christmas for Mark and Hardcastle may be postponed after a gun-smuggler frames the judge for murder.
The judge's niece runs into the mob and attempted murder after she strives to save a student hangout.
A city clerk discovers unemployed police are dispensing their version of justice.
Resentful Mark moves out of Gull's Way and becomes a salesman, not knowing his predecessor was murdered.
Fame seduces Hardcastle when he helps a colleague by acting as judge on a TV courtroom-show.
McCormick returns from the funeral of his high-school girlfriend and finds her message on the answering machine.
Milton's sister-in-law discovers her criminology instructor (Greg Mullavey) deals drugs.
Mark has a "small" party while Hardcastle is away, but the judge returns and finds the house cleaned out.
The two go to Atlantic City to find Mark's long-lost father (Steve Lawrence), a lounge singer.
The judge and McCormick help Mark's old rival (Larry Wilcox), a famous auto racer threatened by unscrupulous backers.
Prison inmates abused by corrupt officials revolt, taking Mark and the judge hostage; guests Red West, Daryl Anderson.
Mark's mechanic (Patrick Collins) "borrows" Coyote to impress a rich woman he met through a dating service.
The judge sees a man he sentenced to life and later discovers the criminal's records have disappeared.
With Hardcastle presumed dead, McCormick goes into hiding with the daughter of one of the murdered alumni.
Two old classmates of the judge's die mysteriously at his reunion in Kansas.
An inmate's decision to forgo parole leads to a band of vigilante judges; guest Efrem Zimbalist Jr.
A society-party heist leads Milt and Mark to a sophisticated, crime-school founder (Robert Culp).
Mark and Hardcastle investigate a plot against the judge's nomination to the Supreme Court.
Hardcastle races his inherited Thoroughbred, unaware a desperate woman has fixed the competition.
Mark poses as a student to discover if a man Hardcastle sentenced for murder actually committed the crime.
Mark and Milton help an ex-convict find a 25-year-old cache before a crooked, retired police officer does.
Hardcastle is framed for drug dealing when he and Mark try to stop Caribbean gunrunners.
So he can fill in for an injured driver, Mark begs Milt not to harass a race-car owner.
Milt and Mark shelter a young gang member (Stoney Jackson) marked for death from several fronts.
Milton talks old pal Buddy Ebsen into taking a B-movie role in a plan to trap a drug-dealing producer.
Hardcastle plans to trap a dangerous loan shark by having Mark pose as a desperate escaped convict.
By pressuring a young boxer's father, a crooked promoter tries to force the Olympic hopeful to turn professional.
Mark and the judge get involved with a woman (Marta Du Bois) linked to the strange deaths of mob leaders.
A convict (Robert Desiderio), seeking revenge on Hardcastle, escapes with the help of the warden's wife.
Mark violates parole by sheltering his ex-cellmate, who later holds up the judge's weekly poker game.
Mobsters snatch a priest, the son of an ex-gangster, to get the father's incriminating files.
Retiring Judge Hardcastle offers McCormick an unusual deal, help him fight crime or go to prison.
Race-driver Mark McCormick, tricked into stealing an experimental car, comes before Judge Milton Hardcastle.