Billy Joe Bob, a hotheaded Texan, engages Magnum's services when his sister, Carol Ann, goes missing. Magnum has his hands full trying to keep Billy Joe from beating up every local who gets in their way and trying to find Carol Ann, who has gotten in over her head with the wrong crowd.

Rick, sad over a failed love affair, finds solace in the company of a beautiful woman named Sara. As the two walk along the beach, she vanishes into thin air. When Magnum investigates the woman's strange disappearance, he learns that Sara actually committed suicide 35 years before. Is someone impersonating the woman or is there some other logical explanation for her puzzling disappearance?