When a bumbling New Yorker is dumped by his activist girlfriend, he travels to a tiny Latin American nation and becomes involved in its latest rebellion.

Told in flashback, Depression-era bum Dan McGinty is recruited by the city's political machine to help with vote fraud. His great aptitude for this brings rapid promotion from "the boss," who finally decides he'd be ideal as a new, nominally "reform" mayor; but this candidacy requires marriage. His in-name-only marriage to honest Catherine proves the beginning of the end for dishonest Dan...

Women (Shirley Jones, Stella Stevens) and his mother help an English constable (James Booth) rise to ruler of a banana republic.

Banana Split takes the viewer on a journey that begins with the hustle and bustle of a fruit market in Thunder Bay, and ends up with an examination of the daily challenges of life in Honduras. In addition to being a popular fruit in Canada, bananas are used as a staple food in more than 100 tropical and sub-tropical countries.