Magnum, P.I. Wiki

Season 4 is the fourth season of Magnum P.I.. It was confirmed on April 15, 2021. It was premiered on October 1, 2021 and has concluded on May 6, 2022.






  • On April 15, 2021, the series was renewed for a fourth season alongside with NCIS, Blue Bloods, Bull and S.W.A.T..[1]
  • The series would set to film in Oahu in early September 2021[2]
  • On May 19, 2021, the series has remain schedule on Friday at 9:00PM/8:00PM after S.W.A.T..[3]
  • The season has premiered on October 1, 2021.[4]
  • Chantal Thuy is now billed as also starring from 4x01 onwards.[5]
  • On May 12, 2022, it was announced that the series has been cancelled after four seasons and recently moved to NBC for next season.[6][7]


Title Written by Directed by Original air date Production code
Island Vibes Eric Guggenheim & Gene Hong Bryan Spicer October 1, 2021 401
S4E1.jpg As Magnum tries to keep his new relationship a secret and handles cases solo while Higgins is away, he is tasked with finding a single mom being hunted by two very dangerous gangs. Also, while Higgins is abroad with Ethan, a misstep forces her to assist an old employer, and Rick gets some bad, but also very, very good news.
The Harder They Fall David Wolkove Doug Hannah October 8, 2021 402
S4E2.jpg While Magnum and Higgins reunite and work the case of a construction worker’s tragic death, TC and Shammy get skyjacked by a pair of drug runners posing as tourists.
Texas Wedge Gene Hong Antonio Negret October 15, 2021 403
S4E3.jpg Magnum, Higgins and Rick go undercover at a ritzy country club when a young caddie is fired after being accused of stealing a member’s golf clubs. Also, Jin's niece, unaware of her uncle's shady past, asks him to speak at her school.
Those We Leave Behind Barbie Kligman Allison Liddi-Brown October 22, 2021 404
S4E4.jpg While Dennis Katsumoto is driving with his mother, the two are carjacked and Dennis is critically injured when his head hits the pavement. Higgins brings Magnum a case of a teenage girl who committed suicide, not telling him she got the case while seeing a therapist, as the therapist strongly feels the girl was not suicidal. While working the case, Magnum and Higgins are also able to help Gordon locate the carjackers who hurt his son. Dennis has successful surgery to repair a brain bleed.
Til Death Katie Varney Eagle Egilsson November 5, 2021 405
S4E5.jpg 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 Cade.
Devil On The Doorstep Tera Tolentino Claudia Yarmy November 12, 2021 406
S4E6.jpg 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 New Lease On Death Barbie Kilgman (story/teleplay) & Zachary Knighton (story) Ruba Nadda November 19, 2021 407
S4E7.jpg When Rick is asked to assist with a federal investigation of his childhood friend Robbie, Magnum launches his own investigation to see what the Feds really have on him Also, Kumu goes undercover in a retirement community when Higgins is hired to investigate the disappearance of a resident’s life savings.
A Fire in the Ashes David Slack Lisa Robinson December 3, 2021 408
S4E8.jpg 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.
Better Watch Out Katie Varney Ruba Nadda December 10, 2021 409
S4E9.jpg A Christmas Eve ransomware attack on the Honolulu Police Department forces Lia to reveal a family secret to Magnum and Katsumoto.
Dream Lover David Wolkove Avi Youabian January 7, 2022 410
S4E10.jpg 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.
If I Should Die Before I Wake Gene Hong & Andre Jackson Lin Oeding January 14, 2022 411
S4E11.jpg 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.
Angels Sometimes Kill Mike Diaz (story/teleplay) & Barbie Kligman (story) Marcus Stokes January 21, 2022 412
S4E12.jpg Shammy asks Magnum and Higgins to locate his missing friend, a homeless veteran. Also, T.C. tries to get Cade to return to school, but quickly learns it's not that simple.
Judge Me Not David Slack Benny Boom January 28, 2022 413
S4E13.jpg 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 Kumu aren't swayed.
Run, Baby, Run David Wolkove Roderick Davis February 25, 2022 414
S4E14.jpg A bail bondsman hires Magnum and Higgins to track down a woman who skipped out on her $250,000 bond. When they locate the body of another P.I. who was previously searching for her, they partner with Det. Lia Kaleo on the case. Also, T.C. and Katsumoto team up on an emotional search for Cade's mother.
Dead Man Walking Gene Hong David Straiton March 4, 2022 415
S4E15.jpg 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.
Evil Walks Softly Tera Tolentino Alexandra La Roche March 11, 2022 416
S4E16.jpg The mother of a suspected bomber hires Magnum and Higgins to locate her teen son and turn him in to the authorities. Also, Kumu and Rick help T.C. navigate his guilty conscience when he runs into a past flame.
Remember Me Tomorrow Mike Diaz & Barbie Kligman & Katie Varney Bryan Spicer April 1, 2022 417
S4E17.jpg Higgins is in a complicated situation when 12-year-old Ella asks for help cracking a triple homicide that involves her mother. Also, Magnum bonds with Bob, a terminally ill veteran, while volunteering with the No Veteran Dies Alone Program and attempts to reunite him with his estranged family.
Shallow Grave, Deep Water David Slack Jay Hernandez April 8, 2022 418
S4E18.jpg Magnum goes to extreme lengths to uncover the truth about a crime that may have involved his dear deceased friend, Nuzo.
The Long Sleep Mike Diaz & Andre Jackson & David Wolkove Eagle Egilsson April 29, 2022 419
S4E19.jpg 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.
Close to Home Eric Guggenheim Bryan Spicer May 6, 2022 420
S4E20.jpg Magnum and Higgins take on a dangerous mission inside a high-security correctional center when a ruthless criminal abducts Katsumoto’s ex-wife, Beth. Also, T.C. rushes to help Rick when Suzy has unexpected pregnancy complications.


  Seasons of Magnum, P.I. (2018)
Season 1Season 2Season 3Season 4Season 5Season 6