Cowboy Bill (who gave Frank his franchise) hires the girls to house-sit his seaside Malibu home. After he leaves, Laverne gets the not so bright idea to throw a beach party, inviting all - and inviting a storm of trouble.

The girls meet two British band-mates, who take them to a Hollywood party. In an attempt to avoid drug use going on, they eat "brownies" instead. The end result causes them to agree to marry the two, who'll pay less taxes by having wives.