The Mystery Machine breaks down (a recurring theme) near a seaside resort during a storm, leading the gang to cross paths with pop culture icons Sonny and Cher . The duo is staying at a Dilapidated hotel on Shark Island to get some rest and relaxation, but their vacation is interrupted by the legend of a terrifying Shark God.

The island setting and the "Peskado Island" hotel provide a classic, spooky backdrop typical of the series' longer 60-minute format.

Like most episodes in this era, the "monster" is eventually unmasked as a human villain using special effects and costumes to scare people away for personal gain.