Higgins' cousin Sally arrives in Hawaii to get married and Higgins has a big surprise. Meanwhile, Magnum is helping Agatha recover $10,000 from a bankrupt investment.
- 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
- Tom Selleck's wife Jillie Mack made her guest appearance in this episode.