Mrs. Gloria Teasdale (Margaret Dumont) is a foolish but wealthy widow living in the financially and morally bankrupt country of Freedonia. She decides to benefit the country by getting Rufus T. Firefly (Groucho Marx) elected as President. But his ideas for economic recovery put Freedonia in further peril. When diplomats from neighboring Sylvania. Pinky (Harpo Marx) and Chicolini (Chico Marx), arrive to lend a helping hand, Firefly insults them. This leads to diplomatic bedlam and Lt. Bob Roland (Zeppo Marx) returns with the diplomats to declare war on them if relations are not restored. Soon, however, the men are fighting to win the love and financial support of Mrs. Teasdale.