The Virgin Islands serve as a backdrop for the Grand Prix Wine-Tasting Competition, whose winner receives a $25,000 prize. Judge Alan Curtis (Robert Guillaume) starts a shipboard fling with Marion Blake (Leslie Uggams), without getting to know her well. Julie's Aunt Sylvia Duvall (Carol Channing) is on the cruise with her friend, Betsy Boucher (Betty White). Their scheme is for Betsy to meet the wine competition's sponsor Elliott Banning (Douglas Fairbanks Jr.), marry him, and become a wealthy bride. But their efforts may be in jeopardy due to Sylvia's well-intentioned bumbling. Also among the judges is snobbish judge Vincent Van Durling (Lee Bergere), who seems like a front-runner for the grand prize. Annie and Kevin Butler (Tanya Tucker and Michael Goodwin) obtain a quickie divorce each year because filing their income tax as a married couple puts them in a higher tax bracket. This is their sixth planned divorce, and this time her impulsive high school classmate, Jeff Thatcher (...