T.C. is giving Thomas helicopter flying lessons when he is shot. With T.C. hospitalised, Mac appears on the scene, ""volunteering"" his services to stand in running Island Hoppers. But it seems that the assailants were actually gunning for Magnum, after a week previously, somebody impersonated him when trying to blackmail a Mexican Mafia King. With Magnum marked as a dead man as a result of the mistaken identity, confusion and chaos reigns, and as per usual, Mac 'just happens' to be in the middle of it all...
Cast of Magnum, P.I.
Tom SelleckThomas Magnum
John HillermanJonathan Higgins
Roger E. MosleyTerry "TC" Calvin
Larry ManettiRick Wright
Gillian DobbAgatha Chumley
Sharon StoneDiane Dupres / Deirdre Dupres
Denny MillerLeon Platt
June ChadwickEnglish Flight Attendant
Carolyn SeymourElizabeth, Lady Ashley
Margie ImpertMadeline Jones
Kathleen LloydCarol Baldwin
Margaret LaceyMrs. Ridley
Ernest BorgnineEarl Gianelli / 'Mr. White Death'
Hari RhodesPrison Guard
Peter DavisonIan MacKerras
Arthur EnglishNewspaper Seller
Julian GloverDuncan Scott / Police Inspector Stokesay
Joseph LongCommander Ocho
Geoffrey BeeversMortuary Attendant
Glenn CannonDr. Ibold
Ed LauterCaptain Quintin
Amanda McBroomCountry Singer