A very attractive security expert brings out the romantic in Magnum when she is hired to help protect Robin's Nest during a jewelry exhibit worth millions of dollars.

Magnum is very enthusiastic about his new project, teaching a class at the University about private investigation. The class is small but interest is great about everyone helps a student investigate the strange behavior of her fiancé.

Magnum and his friends, including Higgins, help a former Vietnam buddy to find a mutual friend being held prisoner in Cambodia.

Magnum is caught between danger and intrigue as a frightened lady, who believes her life is in danger, involves him in a bizarre situation.

Magnum finds himself torn between twin sisters as his involvement with one brings him into conflict with the other.

TC's chopper is about to touch down at the helipad when he loses control over it and plunges into the sea.

While in Cambodia on a rescue mission of an old Army buddy, Magnum, Higgins, Rick and TC realize that their lives are on the line because of great danger and deceit.

Magnum seems to be lost between reality and fantasy, past and present, when he is convinced that he has seen an old friend, Mac, very much alive, walking the streets of Honolulu.

Magnum is working on a case for assistant D.A. Carol and is forced to face a difficult dilemma concerning the guilt of innocence of the suspected murdered who is guilty of another crime.

Higgins is very pleased with the prospect of his distant cousin's arrival. She is to marry the heir of an old Hawaiian family but turns out to be a true punk rocker.

Magnum tries to help a young Amerasian boy find his long lost G.I. father and ends up in the middle of political corruption and mob intrigue.

While Magnum is preoccupied with a very difficult case, help arrives just in time in the person of Luther Gillis, the hard-nosed private eye from St. Louis.

Magnum investigates a case which involves his friend Carol who works for the D.A. and who is about to testify against a man sent to prison by her father while Higgins struggles with the truth during a visit of former Sandhurst friends.

Danger and death are the overtones that result from a simple visit with Rabbi Asher Solomon when he arrives in Hawaii.

A reluctant Magnum agrees to help a friend of Higgins to find the person or persons responsible for the kidnapping of his grandchild.

Rick is the target of yet another of Mac's schemes but this time Mac goes too far, endangering everyone's life with his fantastic plan.

After Magnum has just been put through the wringer at the Hall of Records, he is very reluctant but finally agrees to help one of the clerks, a woman named Ms. Jones, who is looking for her missing husband.

Lacy Fletcher seeks Magnum's help to unearth five songs which has been written by the legendary George Lee Jessup for the woman he loves before he died 25 years ago.

A distinguished Frenchman contacts Magnum and asks for his help in supposedly finding a missing heir.

Magnum goes undercover and into a prison farm to find Darryl Jacobs who is the last person and former boyfriend of a missing young girl.

Laura Griffin, a young woman with amazing psychic abilities, hires Magnum to investigate her own murder.

Magnum is displaced from the guest house when an overly imaginative novelist, who suffers from a sever case of writer's block, becomes suspiciously interested and involved in his latest case.