Dorothy, Rose and Blanche head for their dream vacation in the Caribbean -- but soon discover their "island paradise" is nothing like what was in the brochure. Meanwhile, Sophia romances the girls' Japanese gardener while they're away.

A dateless Rose puts an ad in the personals column, then feels even more dateless when she doesn't get a response at first. Soon, though, she begins receiving letters from someone named "Isaac Newton" -- but Blanche confesses to Dorothy that she's the one who's writing the letters. Meanwhile, a 90-year-old British man takes an interest in Sophia.