‘Magnum P.I.’ Season 4 Episode 1 Preview: Photos, Plot, Cast and Air Date

Magnum PI Season 4 Episode 1
Jay Hernandez as Thomas Magnum in ‘Magnum P.I.’ season 4 episode 1 (Photo: Karen Neal © 2021 CBS Broadcasting, Inc)

CBS’s Magnum P.I. returns to kick off season four on October 1, 2021 with an episode that finds Magnum hiding his new relationship. Season four episode one, “Island Vibes,” was directed by Bryan Spicer from a script by Eric Guggenheim and Gene Hong.

Jay Hernandez returns to lead the cast as Thomas Magnum. Season four also stars Perdita Weeks as Juliet Higgins, Zachary Knighton as Orville “Rick” Wright, Stephen Hill as Theodore “TC” Calvin, Tim Kang as Det. Gordon Katsumoto, and Amy Hill as Kumu.

“Island Vibes” Plot: 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, on the fourth season premiere.

Magnum P.I. Description, Courtesy of CBS:

Magnum P.I. is a modern take on the classic series centering on Thomas Magnum, a decorated former Navy SEAL who, upon returning home from Afghanistan, repurposes his military skills to become a private investigator. A charming rogue, an American hero and a die-hard Detroit Tigers fan, Magnum lives in a guest cottage on Robin’s Nest, the luxurious estate where he works as a security consultant to supplement his P.I. business.

The “majordomo” of the property is Juliet Higgins, a beautiful and commanding disavowed MI:6 agent whose second job is to keep Magnum in line, with the help of her two Dobermans. When Magnum needs back-up on a job, he turns to his trusted buddies and fellow POW survivors, Theodore “TC” Calvin, a former Marine chopper pilot who runs Island Hoppers, a helicopter tour business, and Orville “Rick” Wright, a former Marine door-gunner-turned-impresario of Oahu’s coolest nightclub and the most connected man on the island.

Suspicious of Magnum’s casual attitude and presence at his crime scenes, Detective Gordon Katsumoto finds that he and Magnum are more alike than either of them care to admit. One of Magnum’s biggest supporters is Teuila “Kumu” Tuileta, the unofficial “House Mom” and cultural curator of Robin’s Nest. With keys to a vintage Ferrari in one hand, aviator sunglasses in the other, and an Old Düsseldorf longneck chilling in the fridge, Thomas Magnum is back on the case!

Magnum PI Season 4 Episode 1
Chantal Thuy as Lia and Jay Hernandez as Thomas Magnum in episode 1 (Photo © 2021 CBS Broadcasting, Inc)
Magnum PI Season 4 Episode 1
Perdita Weeks as Juliet Higgins in season 4 episode 1 (Photo © 2021 CBS Broadcasting, Inc)
Magnum PI Season 4 Episode 1
Zachary Knighton as Orville ‘Rick’ Wright and Betsy Phillips as Suzy Madison in season 4 episode 1 (Photo © 2021 CBS Broadcasting, Inc)
Magnum PI Season 4 Episode 1
Zachary Knighton as Orville ‘Rick’ Wright and Stephen Hill as Theodore ‘TC’ Calvin in season 4 episode 1 (Photo: Karen Neal © 2021 CBS Broadcasting, Inc)
Magnum PI Season 4 Episode 1
Tim Kang as Det. Gordon Katsumoto, Chantal Thuy as Lia, and Jay Hernandez as Thomas Magnum in season 4 episode 1 (Photo: Karen Neal © 2021 CBS Broadcasting, Inc)