While waiting for Jonathan to finish a meeting in a London casino, Jennifer is used as an unwitting pawn to transport money to the United States by a Baron.

A drug trafficing scheme is ruined when Freeway's kennel is switched with one containing cocaine.

Jonathan buys a perfume factory following the murder of the owner by his chemist wife and her lover.

Jonathan and Jennifer travel to the Bahamas to meet with a recluse and discover that his assistant has replaced him with an imposter to gain control of his fortune.

Jonathan buys Max a lethal cigar and after accusing him of being predictible Max disappears, leaving the Harts to find him before it's too late.

Jonathan and Jennifer are asked to buy a bankrupt ghost town.

Jennifer wins a walk-on role on a soap opera which leads to a writing job that nearly gets her killed by the leading man.

A psychotic woman is obsessed with Jonathan and is killing anyone who gets her way.

Jennifer finds herself in over her head at the Grey Gables Health Farm when the doctor is killing guests and replacing them with lookalikes.

Jonathan and Jennifer are robbed during a birthday party for Max and go undercover for Jingle-Grams.

Jonathan and Jennifer stumble into a plan to steal ancient treasures from a South American archaeological dig.

Jennifer's former professor asks her to pose as a romance fiction writer during a promotional appearance.

Max is duped into thinking that he has won a million dollars and leaves the Harts to thieves who take over the house.

Jonathan and Jennifer try to help a king save his culture's golden statue after it is stolen by the king's assistants.

Art forgers are replacing masterpiece paintings with fakes and the Harts take action to trap them.

Jonathan joins Jennifer at her prep school reunion and is drugged by a former admirer who wants Jennifer for himself.

A young reporter influenced by Jennifer is murdered by her fiance's employer.

The Harts witness a murder when the spiritual mentor and bridegroom of Jennifer's aunt meets an untimely death.

While visiting a wildlife reserve, Jonathan and Jennifer are hunted as prey by a competitor of Hart Industries.

After extending her hospitality to a young author claiming to be a distant cousin, Jennifer experiences a series of near fatal accidents.

Jonathan purchases their Honeymoom bed, but the wrong bed is delivered. In their search for the ""real"" bed, the Harts become entangled in an international art smuggling scheme through San Francisco and the Napa Valley.

Jennifer's cousin slips into a coma after being continually drugged by the owners of a health club.

A hitwoman is sent to kill a commissioner and ends up taking Jonathan, Jennifer and Max hostage.

The Hart home is stripped of everything. It looks like an inside job and all clues point to Max's new love. When Max is framed for murder, the Harts intervene.

The Harts south-of-the-border boating holiday turns Jonathan and Jennifer into desperate fugitives, on the run from Mexican police and a gang of drug dealers.