Thomas Magnum, a decorated former Navy SEAL who, upon returning home from Afghanistan, repurposes his military skills to become a private investigator in Hawaii taking jobs no one else will with the help of fellow vets T.C. Calvin and Rick Wright, and the former MI:6 agent Higgins.
Magnum and Higgins are sent on a deadly mission inside a high security correctional center when a ruthless criminal abducts Katsumoto and his ex-wife, Beth. Also, T.C. rushes to help Rick when Suzy experiences serious pregnancy complications.Watch Now:AmazoniTunes
Kumu and Higgins are in danger when Robin’s Nest is under siege by mercenaries storming the estate in order to find out the true identity of the White Knight, Robin’s muse and literary hero. Rick and T.C. help one of Rick’s employees when his car is stolen, and Higgins finally gives Magnum an answer about if she’ll become his partner.Watch Now:AmazoniTunes
Magnum and Higgins work a stalking case involving a man with a past in espionage. Ethan asks Higgins to join him on an extended trip for Doctors Without Borders just as Magnum starts to open up to other possibilities.
Hannah, Magnum’s ex and the fugitive responsible for him and his SEAL team brothers being POWs for years, shows up at his home with a gunshot wound, and wanting his help to find her missing CIA father whose life is in danger. Also, Magnum makes an earnest proposition to Higgins for her to become his private investigations partner.Watch Now:AmazoniTunes
When Magnum balks at notorious crime boss Osi Shima’s request to find his missing son, Magnum learns he’s been poisoned and has only eight hours to locate Shima’s son to earn the antidote, or else he dies.
When Rick is asked to assist with a federal investigation of his childhood friend, Magnum launches his own investigation to see what the Feds really have on him. Kumu goes undercover in a retirement community when Higgins is hired to investigate the disappearance of a resident’s life savings.
Magnum must help his defense attorney girlfriend, Abby Miller, when she realizes that the client she successfully defended in a murder trial is actually guilty. Also, TC confronts Kamekona about stealing his helicopter business.
When Hawaii Supreme Court nominee Judge Rachel Park is being blackmailed, she hires Magnum and Higgins who go to extraordinary lengths to help her out. Also, with the pressure of fatherhood looming, Rick suggests changes to make La Mariana more profitable, but TC and Kumo aren’t swayed.
Part 2 of a crossover with Hawaii Five-0. When Junior is kidnapped as leverage to retrieve the stolen list of undercover CIA agents, and most of Five-0 is rounded up by the CIA to prevent them from interfering, Tani and Quinn ask Magnum and Higgins for their help. Part 2 of a crossover with Hawaii Five-0. The crossover starts on Hawaii Five-0 S10E12: Ihea 'oe i ka wa a ka ua e loku ana? (1).Watch Now:AmazoniTunes
Magnum starts following Higgins to discover what she's been hiding, as she's secretly assigned to infiltrate a group threatening to take down MI-6. Also, Rick struggles after an explosion takes the life of someone important to him.
Magnum and Higgins help Rick when his father figure, Icepick, just out of prison and battling terminal cancer, gets double crossed on one last score. Also, Magnum makes one last bold move to help Higgins stay in the country.Watch Now:AmazoniTunes
When a woman hires Magnum and Higgins to locate a man she met briefly at a coffee shop and felt a spark with, they learn that he is hiding a big secret. Also, Higgins keeps a secret of her own after she has a romantic dream about Magnum.
A disoriented man hires Magnum and Higgins to investigate a crime he doesn’t remember after he woke up on the beach covered in blood. Also, T.C. is taken aback when Cade’s biological grandmother makes a surprise visit, and Rick’s feelings for Suzy grow stronger as they prepare for the birth of their first child.Watch Now:AmazoniTunes
A journalist hires Magnum to track down his anonymous source after they mysteriously go dark, and Higgins receives a new assignment from MI-6. Also, Rick's old friend comes to the island, but TC is suspicious of his motives.
A nun hires Magnum and Higgins to investigate a mysterious and large cash donation made to a parishioner undergoing medical treatment at the church. Also, Jin's new dog walking business takes a dramatic turn, and Rick nervously prepares to reconnect with Suzy.
When Katsumoto suspects that one of his fellow cops is dirty and has stolen evidence, he begrudgingly asks Magnum and Higgins for help. Rick and TC help Los Angeles Rams defensive tackle Aaron Donald when a tablet containing the Rams’ playbook is stolen.
When Magnum and Higgins are hired by an anxious groom to look into his bride-to-be on the eve of their wedding, what they think is a simple case of cold feet turns into a web of lies and a life-or-death situation for Higgins. Also, TC makes a touching decision on how to help CadeWatch Now:AmazoniTunes