The surfing gang rescues a beautiful singer from evil bikers.

Frankie and Dee Dee and their beach friends watch a parachute jump concocted by press agent Bullets as a publicity stunt for singer Sugar Kane. The group become interested in skydiving and arrange to take lessons at Big Drop's school. Later, at a party given for Sugar Kane, Bonnie flirts with Frankie, sending Dee Dee into a jealous rage, but the quarreling is interrupted when Eric Von Zipper's Rat Pack motorcycle gang crashes the party. Meanwhile, Bonehead, one of the surfer group, is saved from drowning by Lorelei, a beautiful mermaid, and he falls in love with her. Believing that Bullets has devised another publicity stunt, Sugar Kane allows herself to be kidnaped by Von Zipper; but the surfers lead a wild chase to save her with the aid of Lorelei and Bonehead. As Lorelei returns to the sea, Bonehead finds solace with Sugar Kane, and Frankie and Dee Dee resolve their differences.