Watch Series: Magnum P.I. Released in (2018) - Season 4 produced by USA, The TV Series categorized in Action, Adventure, Crime, Drama, and content rating TV-14 with duration 43 min broadcasted as these networks NBC, CBS, Streamed at Putlocker & directed by Peter M. Lenkov, Eric Guggenheim, Donald P. Bellisario, Glen A. Larson. Thomas Magnum, a decorated former Navy SEAL, returns home from Afghanistan and applies 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 former MI:6 agent, Juliet Higgins. - Season 4