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.

When Dorothy looks for extra work to do during the summer, Blanche gets her a job at the museum where Blanche works. However, Blanche soon becomes jealous when it seems Dorothy is more proficient at her job than she is. Meanwhile, Rose finds a stray dog while shopping.

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.