Texasan Billy Joe Bob Malý najme Magnuma, aby našel jeho sestru Carol Ann, který je zpěvačkou v noční klubu. Jednoho dne po odchodu z klubu beze stopy zmizela.

Mladý student si najme Magnuma, aby našel jeho otce, archeologa. Jeho loď byla nalezena zničená v průlivu Nehoa. Což je oblast, o které místní Havajci věří, že je prokletá.

Sara Cliffordová spáchala sebevraždu v létě roku 1945 tak, že sjela autem z útesu. Rick potká v klubu King Kamehameha ženu oblečenou v bílém s nápisem Sarah. Když se procházejí po pláži, žena náhle zmizí...

Přeběhlý ruský pilot Yuri Dolgof najme Magnuma, aby mu pomohl dostat do USA jeho snoubenku Ninu.

While working on a routine divorce case, Thomas catches a brief glimpse of a woman on a passing boat that he is certain is Michelle, the girl he married during the Vietnam war seven years ago, and whom he previously believed to have been killed shortly afterwards in a bombing raid. All he has of the brisk sighting is some blurred photos he managed to take, and T.C. and Rick, whilst not completely convinced, help as he scours the local area looking for her. But there are several parties that intend to see that Thomas is unable to make contact with Michelle, and the search sees them stumbling into dangerous political territory.

In the conclusion of this feature-length / two-part story, Magnum's desperate search for Michelle faces being forced to a halt after he has been called up for active Navy duty and ordered to testify in Washington. Thomas suspects that is just a political smoke-screen to try and get him off Michelle's trail. Briefly re-united with Michelle, who is married to Vietnamese General Hue, who is involved in delicate negotiations regarding the returning remains of M.I.A.s and P.O.W.s from Vietnam. But Michelle is suspected of being a traitor agent and is in great danger...

Záhadná kráska Jennifer Chapmanová se zhlédne v Higginsovi. Tato skutečnost přirozeně nesedí Magnumovi, který Jennifer podezřívá, že její láskyplné úmysly jsou falešné a sleduje tím nějaký zločinný cíl.

Magnumova blízká kamarádka Kacy, bývalá mistryně světa v surfingu, je nalezena na pláži mrtvá. Magnum ví, že byla zavražděna. Pouští se do vyšetřování s cílem nalézt vraha.

Bláznivý a odvážný spisovatel Buck Gibson chce navštívit své přátele na Havaji netradičním způsobem. Po šíleném seskoku padákem přistane přímo na Higginsovi. Oba jsou okamžitě odvezeni do nemocnice. Mezitím si Joan, jedna z Gibsových bývalých manželek, najme Magnuma, aby na něj dohlédl, neboť je riziko zmizení jejich "alimentů".

Magnum is hired by an old friend's Japanese wife when her now wealthy husband is kidnapped and held for $500,000 ransom. She wants Thomas to deliver the ransom without her strict father, who has never approved of the marriage, finding out. But the further he gets involved, Thomas more and more comes to suspect that not all about the kidnapping is as it seems...

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...

Virginia Fowlerová napsala jako "anonymní autorka" biografie mnoha slavných osobností. Nyní má napsat životopis introvertního vědce a vynálezce Harolda W. Farbera. Neznámý zloděj jí však ukradne z apartmánu všechny materiály. Virginia se proto obrátí na Magnuma, aby zloděje našel.

Kate Sullivanová, reportérka, kterou Magnum, TC a Rick potkali ve Vietnamu, požádá Magnuma o pomoc. Chce, aby našel bývalého zpravodajce britské MI6, který zmizel poté, co napsal knihu pojednávající o MI6. Kate má informace, že by mohl přiletět na Havaj.

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...

Thomas awakes from a bad car accident in which he drove the Ferrari over a cliff on his way home from dinner with his clients, for whom he was searching for a missing young woman; the accident leaves him with amnesia, and as he struggles to remember the events that lead up to the crash, he becomes the prime suspect when the girl he was looking for is found murdered, and one of his baseball caps is found at the scene of the crime.

Magnum jede na Sicílii, aby zachránil dceru svého přítele, která byla unesena gangstery. Magnum dívku zachrání a přiveze zpět do Států. Jenže poté nastane problém...

After the attempted murder of a former Naval Academy buddy, care-free quarterback Dorsey Bramlett, Thomas agrees to join the professional American Football team that Bramlett is now on in training, in order to be close at hand and protect his pal should another attempt be made on his life. The would-be killer is determined and persistent, but that's nothing compared to the strenuous poundings Thomas has to endure during training...

Magnuma si najme Jeannie Lowryová jako osobního strážce, zatímco hraje poker o vysoké sázky na jachtě.

Vietnamský veterán ze Seattlu si najme Magnuma, aby našel jeho přítelkyni, který přiletěla na Havaj, ale poté záhadně zmizela.

Někdo se snaží zavraždit Elmo Zillera, Higginsova nevlastního bratra z Texasu. Elmo přiletěl na Havaj na soutěž v rodeu a Magnum se ujímá jeho ochrany.

Jana Kona a její dva společníci provozují velmi úspěšnou módní společnost. Když je jeden ze společníků zavražděn, požádá Jana Magnuma, aby ji ochránil.