The Harts travel to Napa Valley to celebrate their anniversary. While there they accidentally purchase a resort. To their surprise there are others who want the property and will go to any lengths to get it.

The Harts host Jennifer's Aunt's latest nuptials (Eva Gabor), but the occasion is crashed by ex-husband William Windom - and a poisoned cake.

Jennifer becomes involved in a deadly gambling scheme while in London.

Jennifer's prep school classmate, sporting a new look, looks to settle some old scores. And one of them involves murder.

While visiting an old west town for a potential investment, the Harts investigate a murder that leads them to gold.

The Harts are unwillingly involved in a deranged fan's fantasy after Jennifer agrees to help her old professor by impersonating as the author of his novel

Max's prize of one million dollars in a cereal slogan contest, puts him and the Harts at risk.

The Harts and Max must save the Harts' friend King Rashid from being overthrown.

Jennifer goes undercover at an exclusive women's only fitness center, and gets caught up in a murderous plot to defraud wealthy widows.

The Harts go undercover as King Kong and Ann Darrow, as singing telegrams, to trap burglars.

After losing his bid to Hart Industries over purchasing a large company, businessman and big game hunter Winston Davenport lures The Harts to South America in retaliation with hopes to kill Jonathan and make Jennifer his prize.

On a romantic getaway, Jennifer meets the fiancé of a former journalism student, who recently committed suicide. Jennifer and Jonathan come to the conclusion that the death was murder, and get caught up in preventing another - Jennifer's.

Freeway, Max, and the Harts find themselves in the middle of a drug smuggling ring.

A Hart employee is murdered during an exploration in the jungle. The Harts are off to Peru to solve the mystery.

Greed and an ongoing affair lead a woman to murder her wealthy husband using "perfume". The Harts stumble upon this case and soon they find themselves up to their noses in the perfume world.

The Hart's discover a well-known party host is actually an imposter, but no one can get a private audience to prove it. Enter Max, then the police.

Jennifer wins a walk-on part to a popular soap opera where a real murder of an actress has taken place. After a successful day on the set, Jennifer is asked to help write the next few episodes when the head writer is murdered by the actor whose character is about to die in the show. Will Jennifer be next?

Jonathan and Jennifer give Max an expensive foreign cigar. Max plans to go to Vegas like he does every year at the same time, but fearing he's 'in a rut', decides to travel somewhere different, only he doesn't tell anyone where he's going. The Harts discover that the cigar is poisonous and need to track down Max before it's too late.

A female assassin takes Jonathan hostage, but he tells her he's Max.

Jonathan is stalked by a mentally disturbed woman who would kill to obtain him. After killing two of Jonathan's co-workers, she goes after Jennifer.

Art forgers move into the house next to the Harts.

An exercise routine and nutritional supplement is more than it seems, when Jennifer's cousin suffers a heart attack after only a week in the program.