Bananas tells the story of Fielding Mellish (Woody Allen), a neurotic New Yorker who chases after the woman of his dreams, Nancy (Louise Lasser), to the imaginary Central American country of San Marcos, where she is a political activist in a revolution. Nancy rejects Fielding's affections and desires nothing more from him but to leave her alone. Fielding coincidentally becomes a guest of the country's dictator (Carlos Montalban), and winds up becoming the leader of San Marcos himself.