Magnum, P.I. S01 E01 Don't Eat the Snow in Hawaii (1)

"He's a Hellraiser in Paradise."

When Thomas's childhood friend and Naval comrade Dan Cook turns up dead, Thomas is adamant that the official cause of death, a burst bag of smuggled cocaine, is bogus, and enlists the aid of Dan's sister Alice in taking on the Navy to uncover the true nature of the top-secret assignment Dan was working on before his death.