This is the first and some would say best(other than Beach Blanket Bingo) of the series.Annette and Frankie are on their way to a cozy weekend beach vacation,but Annette has invited the whole gang!!!Frankie is mad at her rejection of him,and they have a childish fight.Meanwhile,a professor is studying the teens and Annette uses him to get back at Frankie,while Frankie uses an over-endowed girl.Annette sings "Treat Him Nicely" and "Promise Me Anything" as well as the title song with Frankie.Fun pie-throwing things.