Season 5

Feb 19, 2023 · 43 min

Magnum and Higgins weigh the risks of pursuing a relationship. Rick juggles being a new father and running La Mariana. Katsumoto tries to figure out his next move.

Feb 19, 2023 · 44 min

Magnum and Higgins go undercover as lifeguards in order to solve a murder. Jin Jeong wins a storage unit auction and enlists the help of Rick and TC upon finding a stolen military medal.

Feb 26, 2023 · 42 min

Katsumoto takes a job providing security for a chart-topping K-pop star. Higgins and Rick find themselves in peril while trying to help Rick's friend. Magnum harbors suspicions about Capt. Greene's death.

Mar 5, 2023 · 42 min

Magnum and Higgins search for a CEO who has mysteriously vanished. Rick braces for a visit from his wild-child little sister, Ruthie.

Mar 12, 2023 · 42 min

Magnum recruits Katsumoto to help find a missing tourist. Higgins and Kumu attempt to solve the murder of a beloved dog. Rick enlists the aid of TC after he accidentally loses Magnum's pet mouse, Roberto II.

Mar 19, 2023 · 42 min

Katsumoto's hearing date has arrived and he will learn if his career in law enforcement is over for good or not. Magnum and Higgins are hired to investigate a man their client believes committed murder. Rick's suspicions grow on their relationship.

Mar 26, 2023 · 42 min

Magnum and Higgins investigate the robbery of an elderly man suffering from Alzheimer’s. The ohana tries to help TC overcome a past trauma.

Apr 2, 2023 · 42 min

Magnum and Rick make a shocking discovery in the Capt. Greene case. Higgins and TC head to Maui to help an eccentric billionaire find the owner of a pesky drone that has been harassing him. Shammy helps Kumu after an incident occurs at La Mariana.

Apr 16, 2023 · 42 min

Magnum and Higgins take on a case that sends Higgins inside a psychiatric hospital. Katsumoto and his son, Dennis, head to the mainland to look at colleges, but their trip takes a harrowing turn when a run-in with a local turns ugly.

Apr 23, 2023 · 42 min

An armed hit team lays siege to Robin's Nest. TC is badly injured while Rick fights for his life. Mid Season Finale

Oct 4, 2023 · 42 min

Magnum and Higgins go to work for a dangerous and controversial client. Kumu and Shammy help move TC to a veterans' rehab facility. Rick flirts with a woman who works at the marina.

Oct 11, 2023 · 42 min

Magnum and Higgins try to help Zhao, a close friend of Kumu, recover her life savings that was all lost to a scammer. TC becomes increasingly frustrated at the lack of progress in his recovery and pushes everyone away.

Oct 18, 2023 · 42 min

Magnum and Higgins enlist Katsumoto to go undercover when a chef at a high-end restaurant goes missing. Kumu works with Cade at the Cultural Center, confronting one of America's darker chapters - the internment of Japanese Americans in the wake of Pearl Harbor.

Oct 25, 2023 · 42 min

Magnum and Rick race to find a missing witness who can exonerate an innocent man accused of murder. TC tries to repair his relationship with Mahina after being released from the VA.

Nov 1, 2023 · 42 min

Magnum and Higgins are hired to find a missing gamer whose online friends believe he might be in trouble. Jin Jeong enlists the help of TC in a treasure hunt after his ex-partner gets out of prison.

Nov 15, 2023 · 42 min

Magnum and Higgins agree to help a teenage Amish boy who has traveled to Hawaii in search of his runaway sister. Rick sets out to find TC a date to the Marine Corps Ball.

Dec 6, 2023 · 42 min

After a high-stakes homicide case falls apart at trial, Katsumoto asks Magnum to help him stop a killer from walking free. Higgins helps Jin Jeong with a mystery of his own.

Dec 13, 2023 · 42 min

Magnum and Higgins are hired by a University of Oahu dean to quietly investigate a professor who has been accused of having an inappropriate relationship with a female grad student. TC and Katsumoto take Cade and Dennis on a father-son camping trip.

Jan 3, 2024 · 42 min

Magnum and Higgins re-examine a fatal arson investigation at the request of TC and Mahina, leading to a sinister discovery. Kumu volunteers with Rick at a veterans’ crisis call center.

Jan 3, 2024 · 42 min

Magnum and Higgins take a major step forward in their relationship. At the same time, the past comes back to haunt them when a previous suspect becomes their client. TC aims to scale up Island Hoppers. Rick gets a new business partner.