Magnum is hired by a new singer at the King Kamehameha Club to find her fiancé who is listed as MIA during the Vietnam War.
A new singer at the King Kamehameha Club who claims to have E.S.P. hires Magnum to find her childhood friend-come-fiancée Eric, a Marine who has been listed as Missing In Action since 1972, whom now she has started getting psychic visions of. As he investigates, Magnum discovers that Eric was a member of the top-secret 'Delta Section', and is refusing to come in from the cold until he exposes the division's activities to the press but is being pursued by a Delta operative who is determined to bring Eric in and keep him quiet, at any cost.
- Tom Selleck as Thomas Sullivan Magnum IV
- John Hillerman as Jonathan Quayle Higgins III
- Roger E. Mosley as Theodore "T.C." Calvin
- Larry Manetti as Rick Wright