Magnum and Higgins go to England to prepare Robin Masters' latest purchase, a castle, for a party. While there, Magnum looks up an old friend only to learn he is dead.

Magnum is reunited with a former high school friend and they try to recover a kidnapped dolphin.

Magnum rescues a woman who attempted suicide and then strives to protect her from her husband.

When he takes a job as a hotel detective, Magnum's attempts at catching a cat burglar preying upon guests are complicated by his relationship with a hooker who keeps getting him into trouble with both criminals and his boss.

TC's friend is killed during a store robbery and Magnum and TC set out to find the killers.

Magnum goes home to Virginia to attend his grandfather's funeral. And when a family heirloom goes missing he accuses his step father of stealing it to save his business.

Magnum is hired by a cattle rancher on the big island of Hawaii to catch cattle rustlers.

Robin Masters' publisher buries a chest containing $1 million on Oahu and a contest is held to find it. Magnum is tasked with protecting the woman who has the clues to the chest's whereabouts.

Magnum is recalled to active duty by a Navy admiral and tasked with finding a spy.

While diving with TC, Magnum sees a young boy without diving gear who gestures Magnum to follow him.

Higgins' friend brings his carnival to Hawaii and Magnum is asked to find the murderer of one of the trapeze performers.

Robin Masters' nephew "RJ" has been sent to the estate so Higgins can educate and teach the young man discipline.

Robin Masters has fired Higgins and Magnum is awaiting the arrival of his replacement.

Magnum, TC and Rick are aboard a cruise ship guarding a wooden Hawaiian family God statue belonging to Robin Masters.

Rick is sailing a yacht with four male passengers when the boat is attacked by gunmen.

An insurance salesman from the Mainland hires Magnum to find his father whom he has not seen in over 20 years.

Magnum is hired by a rich young woman who wants him to find a former family chauffeur who stole a string of pearls, or that is what she says.

Higgins' life is turned upside down when a man claiming to be his half brother shows up at a Hawaiian Islands chess tournament.

Rick wins one million dollars on a game show and falls in love with a beautiful blond. Magnum and T.C. try to save the Little League team's clubhouse.

A woman who is writing a book about road signs hires Magnum because someone is following her and attempting to steal something but she does not know what it is.