When a feisty cocktail waitress is denied permission to scatter her late father's ashes at the USS Arizona Memorial in Pearl Harbor due to a court martial ruling that he was AWOL, she turns to Magnum to prove her father was indeed present during the infamous Japanese raid.

Magnum is stunned when Wilson MacLeish, an eccentric millionaire whom he worked for, is killed in a plane explosion and leaves him nearly his entire fortune - which includes a videotape suggesting he expected to be murdered by a relative looking to get his money.