It's the Christmas season, and against his better judgement, Magnum agrees to being hired by five young schoolgirls to find their teacher, who has seemingly gone missing after falling in love. While he's working on the case, Magnum manages to convince Higgins to let the young girls stay on the Masters Estate, but he's unaware that he's being deceived in a scam over a valuable painting recently purchased by Robin Masters...

When Saul and Lena, an ageing couple who run a local shop, abruptly make plans to leave town, suspicious Magnum and Rick, who are friends with the couple, investigate – only to arrive at the pair's home to see Saul whisked away in an ambulance after suffering a heart attack. Yet when they check at the hospital, he's not there. It becomes apparent that Saul has been kidnapped, and as Magnum houses Lena at Robin's Nest while looking for her missing husband, she explains that they are Holocaust survivors, who are being hunted by neo Nazis. But there's a twist that Magnum doesn't foresee...

Rick is organising a surf-ski competition to be held at the King Kamehameha Club (much to the disapproval of co-committee member Higgins) when a Kahuna appears a places a ""curse"" on the club and all who use it. Magnum and others are sceptical, but the native locals take such curses very seriously, and it seems there may be something in it when one of the competition competitors suddenly collapses and dies; then, amongst other incidents, fire breaks out in the kitchen; and when Rick falls ill. Thomas investigates to try and find if there is a more logical explanation behind the events, but his enquiries aren't helped by a hounding news reporter, who sees the series of strange incidents as a chance for a big news story...

Magnum is hired by a bubbly young woman to find her father, who disappeared over ten years ago, not to be heard from since until she recently received a postcard from him sent from Hawaii. But her father is involved in some rather shady business, and Magnum isn't the only one looking for him...

Having once been hired by wealthy, blind Agatha Kimball to find her missing grand-daughter Amy, Magnum's services are once again called upon by his elderly friend after she has been contacted by a black-mailer claiming to have some important information about Amy. She instructs Magnum to pay the man and get rid of whatever the information about Amy is without investigating further, but when Agatha is nearly killed in a series of suspicious accidents, and when the black-mailer is shot dead during the delivery of the ransom, Thomas decides he must ignore instructions and investigate just what trouble his elderly friend and her grand-daughter are in...

As a favour to Robin Masters, Thomas finds himself acting as body-guard to a famous ballerina, part of a visiting troupe, after she has had several attempts made on her life. The dancer's stuboness sees sparks flying between the pair as Magnum tries to protect her - and T.C.'s previously undeclared love of ballet comes in useful, with him more than willing to help Thomas out on the case for once. Meanwhile, Rick accepts a job on Magnum's behalf, to investigate a woman's husband, but Thomas becomes suspicious that the timing of the job is rather too coincidentally and comes to suspect that he's been hired for another reason; and the whole situation sees him uncovering a case of international intrigue...

While working for a large corporation to investigate a case of computer espionage, Magnum is hired by one of the company's presidents to check out his wife, whom he suspects is having an affair. But Thomas finds himself in a compromising position of split loyalties when it turns out that the man that the woman is seeing is none other than Rick. Meanwhile, Higgins is expecting a visit from his once fiancée, and enlists Thomas' help in getting in shape before her arrival...

Magnum returns from a case out of Honolulu, to find that the Masters Estate is being used by a film team to shoot a new movie, based on one of Robin's books. What's more, he is employed to be the stunt double for one of the film's stars, Jack Martin - something which Thomas is highly unenthusiastic about, until he learns that Martin's wife Olivia Ross, of whom Thomas has always greatly admired, is also starring in the film, and relishes the opportunity to get close to her. But things take a dramatic turn when, during filming of a key scene, Olivia shoots Jack with a prop gun, but the bullets turn out to be real instead of blanks, leaving Jack in critical condition. With his idol Olivia the prime suspect in trying to kill her husband, Magnum investigates the ""accidental"" shooting to find just how the bullets came to be changed, and by whom...